diff --git a/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295_actions_merged.json b/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..aedd2a3d0661c714ca5db6bfdb81508c7fb17123
--- /dev/null
+++ b/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295_actions_merged.json
@@ -0,0 +1,1945 @@
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diff --git a/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295_summary_merged.json b/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e4887cf4e4e442b86d8d9a20a899668706f93238
--- /dev/null
+++ b/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295/session_002d2729-df71-438d-8396-5895b349e8fd_65133_65295_summary_merged.json
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+            "is_high_after_merge": true
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+            "merge_n": 1,
+            "merge_frames": [
+                69
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_01111831-9107-43c4-bf0e-6b26e9b32a2b_52957_53119/session_01111831-9107-43c4-bf0e-6b26e9b32a2b_52957_53119_summary_merged.json b/session_01111831-9107-43c4-bf0e-6b26e9b32a2b_52957_53119/session_01111831-9107-43c4-bf0e-6b26e9b32a2b_52957_53119_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5de34720dee1e9aaaae74fc6885ef7877d60eedb
--- /dev/null
+++ b/session_01111831-9107-43c4-bf0e-6b26e9b32a2b_52957_53119/session_01111831-9107-43c4-bf0e-6b26e9b32a2b_52957_53119_summary_merged.json
@@ -0,0 +1,118 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
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+    "pose_is_camera_to_world": false,
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+    "thresholds": {
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+        "pitch_thresh": 0.55,
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+    "num_output_items": 8,
+    "output_items_preview": [
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+                31,
+                32,
+                33,
+                34
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+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603_actions_merged.json b/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e356305693e5cf6140d30140cfe091284c393deb
--- /dev/null
+++ b/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603_actions_merged.json
@@ -0,0 +1,652 @@
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+}
\ No newline at end of file
diff --git a/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603_summary_merged.json b/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e75e5277196586c084e723bf33cb5c8668f3c8e4
--- /dev/null
+++ b/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603/session_055f3cf1-1133-4260-b5a0-31e7ca1726a1_20441_20603_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
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+    "flip_pitch": true,
+    "thresholds": {
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+        "move_thresh": 0.01,
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+    "num_output_items": 24,
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+            "is_high_after_merge": false
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+                82,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
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+                87,
+                88,
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+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "is_high_after_merge": false
+        },
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+            "merge_n": 5,
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585_actions_merged.json b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e71e2b4da8fe0068837c06c3a98d71a0e0b90157
--- /dev/null
+++ b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585_actions_merged.json
@@ -0,0 +1,850 @@
+{
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+            "yaw_delta": -0.18779564344913524,
+            "pitch_delta": 0.09010065280813506,
+            "move_fwd": 0.0017654950416708067,
+            "move_right": 0.0008268991056049321,
+            "move_up": -0.0009113098205625266,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+        }
+    }
+}
\ No newline at end of file
diff --git a/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585_summary_merged.json b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d0f8d9b43d0e5fe29af737279d7580ec2a84c16e
--- /dev/null
+++ b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_49455_49585_summary_merged.json
@@ -0,0 +1,378 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 33,
+    "output_items_preview": [
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
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+            "merge_frames": [
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+                6,
+                7
+            ],
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+                9,
+                10,
+                11,
+                12
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+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                15,
+                16
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                18,
+                19,
+                20,
+                21
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                29,
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+                31
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+        },
+        {
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+            "merge_frames": [
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+                33,
+                34,
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+            "is_high_after_merge": false
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+            "is_high_after_merge": true
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+                67,
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+        },
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+        },
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+            "merge_frames": [
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+                77,
+                78,
+                79,
+                80
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
+                81,
+                82,
+                83
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                84,
+                85,
+                86,
+                87,
+                88
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                89,
+                90,
+                91,
+                92,
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                94,
+                95,
+                96,
+                97,
+                98
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 2,
+            "merge_frames": [
+                99,
+                100
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                101,
+                102,
+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 3,
+            "merge_frames": [
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 1,
+            "merge_frames": [
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150_actions_merged.json b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..93dc9a04622ac6d4c2f5d3612756a29f983c6df9
--- /dev/null
+++ b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150_actions_merged.json
@@ -0,0 +1,740 @@
+{
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diff --git a/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150_summary_merged.json b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d0fc7af010c46398a54434277b1421ac6ccaaa4d
--- /dev/null
+++ b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_61988_62150_summary_merged.json
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+            "merge_n": 5,
+            "merge_frames": [
+                99,
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434_actions_merged.json b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e5ba708d72ae6b672edb1bd7c4583a536e3ce1d1
--- /dev/null
+++ b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
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+            "yaw": 0.0,
+            "pitch": 4.583930028313182e-16,
+            "yaw_delta": 0.13545732743210692,
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+            "move_fwd": -0.009359090486626588,
+            "move_right": -0.0046515934345382785,
+            "move_up": -0.004073251504816609,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_right": -0.008981882600996272,
+            "move_up": -0.022235605577266594,
+            "merge_n": 5,
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+            "is_high_after_merge": true
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+            "move_up": -0.005303172138843212,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434_summary_merged.json b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4837c0ae6d40607d24a93271f9a17fb411f43628
--- /dev/null
+++ b/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434/session_06456897-960d-4d0c-8ce2-cd50a5a57bc3_83272_83434_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544_actions_merged.json b/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..a9143cff636abc48267fc83b558c03d4ac780211
--- /dev/null
+++ b/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "move_up": -0.0007223478936973506,
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+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
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+        }
+    }
+}
\ No newline at end of file
diff --git a/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544_summary_merged.json b/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..52424186b99b41dad5dfd7ce76f9dc6de59bdbb7
--- /dev/null
+++ b/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544/session_10ab80d7-0eb7-4f35-935d-93a9531635d3_18382_18544_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+                2,
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+                6,
+                7,
+                8,
+                9
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+        {
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+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                26,
+                27,
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+            "is_high_after_merge": false
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+                74
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                77,
+                78,
+                79
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                81,
+                82,
+                83,
+                84
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238_actions_merged.json b/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5c5aa597c2467e999937952804f13c7e3c6fe3d6
--- /dev/null
+++ b/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+                1,
+                2,
+                3,
+                4
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+}
\ No newline at end of file
diff --git a/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238_summary_merged.json b/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..0ece97c6540ffb37c4e8f13301a2333665914abb
--- /dev/null
+++ b/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238/session_1ead2ccf-0c67-41e7-88d3-de7ecd0c8c7c_3076_3238_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
+            ],
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
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+                16,
+                17,
+                18,
+                19
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+                21,
+                22,
+                23,
+                24
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+        },
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+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
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+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596_actions_merged.json b/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596_actions_merged.json
new file mode 100644
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--- /dev/null
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diff --git a/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596_summary_merged.json b/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..12c1f2e1d8adcdf349d0fff87271e74679a7c6f9
--- /dev/null
+++ b/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596/session_22a3ba4e-c70d-4905-b40f-f8dcfcee5835_3434_3596_summary_merged.json
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+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408_actions_merged.json b/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..a722ab3477f8382d98fcd0583033850b91c159fa
--- /dev/null
+++ b/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -3.0552638810886153e-19,
+            "yaw_delta": 0.11048332537129113,
+            "pitch_delta": 0.20485801426423436,
+            "move_fwd": 0.0002210476473740271,
+            "move_right": 0.0009982819364121706,
+            "move_up": 0.0008345570539941046,
+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_right": 1.2741806316204023e-05,
+            "move_up": -0.0010907959859021512,
+            "merge_n": 5,
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+}
\ No newline at end of file
diff --git a/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408_summary_merged.json b/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..b5978a83351b140847bf621080f3d164dac51f1f
--- /dev/null
+++ b/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408/session_2481f41b-fdff-4c32-b273-80c776c8eafd_5246_5408_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+                1,
+                2,
+                3,
+                4
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+            "merge_frames": [
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+                6,
+                7,
+                8,
+                9
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+        {
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+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                26,
+                27,
+                28,
+                29
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                72,
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+                74
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377_actions_merged.json b/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..44012638d1d8cb3336a965167bb5ab60a3c935c9
--- /dev/null
+++ b/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+                1,
+                2,
+                3,
+                4
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+}
\ No newline at end of file
diff --git a/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377_summary_merged.json b/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d76eeb50d75c235f49434a35ade02a2d246aa004
--- /dev/null
+++ b/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377/session_254e8485-eb84-461a-aed5-a71716588fad_9215_9377_summary_merged.json
@@ -0,0 +1,315 @@
+{
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+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
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+    "num_output_items": 24,
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+                17,
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+                24
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+        },
+        {
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "is_high_after_merge": false
+        },
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+            "merge_n": 5,
+            "merge_frames": [
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244_actions_merged.json b/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..48a7337c698863a8d1b2a4ce19c1ce839a8e4458
--- /dev/null
+++ b/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "pitch_delta": -0.5874404263484386,
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+                0,
+                1,
+                2,
+                3,
+                4
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+            "is_high_after_merge": true
+        },
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+            "merge_frames": [
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+        },
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diff --git a/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244_summary_merged.json b/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..18044b34e3aef4cac6f7dd8d1fdbf1e03e7dd2f8
--- /dev/null
+++ b/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_22082_22244_summary_merged.json
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+            "merge_frames": [
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+                51,
+                52,
+                53,
+                54
+            ],
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+            "merge_frames": [
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+                56,
+                57,
+                58,
+                59
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                61,
+                62,
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+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": true
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+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_53734_53879/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_53734_53879_summary_merged.json b/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_53734_53879/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_53734_53879_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..f61a1d80b36cc341348ce0cac024684f1e66b680
--- /dev/null
+++ b/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_53734_53879/session_25c59c93-11c5-4240-bbc3-c4dc74e6620c_53734_53879_summary_merged.json
@@ -0,0 +1,434 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 41,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
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+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                20,
+                21
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                22,
+                23,
+                24,
+                25,
+                26
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+                27
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+            "is_high_after_merge": true
+        },
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+            "merge_n": 1,
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+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "is_high_after_merge": true
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+            ],
+            "is_high_after_merge": true
+        },
+        {
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+                112
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+                116,
+                117
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257_actions_merged.json b/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..086d18681d01356cab3030a858aec4126baab680
--- /dev/null
+++ b/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+}
\ No newline at end of file
diff --git a/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257_summary_merged.json b/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..b9075fa3910189a61b3c37b4a8f295dc3ed628b7
--- /dev/null
+++ b/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257/session_26f1c77e-814e-4609-ad67-12447d1627e1_34095_34257_summary_merged.json
@@ -0,0 +1,315 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
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+    "num_output_items": 24,
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+            "is_high_after_merge": true
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+        {
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+                83,
+                84
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+        {
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+            "merge_n": 5,
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670_actions_merged.json b/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..369ab24140d27b8e0eff71c1599e829604c26da7
--- /dev/null
+++ b/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
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+            "pitch": -5.875451687294073e-16,
+            "yaw_delta": -1.0276666430843306,
+            "pitch_delta": 0.41168614615683885,
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diff --git a/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670_summary_merged.json b/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..88e45034a6b67f66b85ee974621f912dc55c45a0
--- /dev/null
+++ b/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670/session_28a0efd2-a96e-4e6b-9465-a6a9251072f3_11508_11670_summary_merged.json
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+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692_actions_merged.json b/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..27c0677dc8126c2c966a755385b3ba6fed0bcb3c
--- /dev/null
+++ b/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692_actions_merged.json
@@ -0,0 +1,806 @@
+{
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+            "l_click": 0,
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+            "yaw": 0.0,
+            "pitch": 1.5902773407317584e-15,
+            "yaw_delta": -1.5899307037840913,
+            "pitch_delta": -1.368531333516824,
+            "move_fwd": 0.0032554538649880093,
+            "move_right": 0.006451201448408872,
+            "move_up": 0.0026100129457006355,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_fwd": 0.005678842441930269,
+            "move_right": -0.00843735707294108,
+            "move_up": 0.00011344818553249935,
+            "merge_n": 5,
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+        }
+    }
+}
\ No newline at end of file
diff --git a/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692_summary_merged.json b/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..52d7377172063e536248a295af28aaf1a0fb7901
--- /dev/null
+++ b/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692/session_28fe3d66-382b-425a-8409-3cf17f5c8670_12537_12692_summary_merged.json
@@ -0,0 +1,364 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 31,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
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+            "merge_frames": [
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+                23,
+                24,
+                25,
+                26
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+        },
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+            "merge_n": 5,
+            "merge_frames": [
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+                66,
+                67,
+                68,
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821_actions_merged.json b/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..416a8c9c99823b5bc835b917bda1c9a4d166059a
--- /dev/null
+++ b/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "move_up": 0.00027781243998424896,
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+                0,
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+                2,
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+                4
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+        },
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+            "move_up": 0.0004715243250768791,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
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+        },
+        "2": {
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+            "l_click": 0,
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+            "yaw": 0.6519770734530255,
+            "pitch": 1.519951674545279,
+            "yaw_delta": 0.4662937651162622,
+            "pitch_delta": 0.9215191758434198,
+            "move_fwd": 0.008353840666421137,
+            "move_right": -0.002853471389727082,
+            "move_up": 0.0007622987984078883,
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+            "merge_frames": [
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+                12,
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+                14
+            ],
+            "is_high_after_merge": true
+        },
+        "3": {
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diff --git a/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821_summary_merged.json b/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c594590a68872156e5964ae26f814f63936621c3
--- /dev/null
+++ b/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821/session_28ff9118-e876-497c-9901-cb89a62509fc_89700_89821_summary_merged.json
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+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471_actions_merged.json b/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..951e407cf4fc91a6a8a14ba50008f0254d33aa8b
--- /dev/null
+++ b/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471_actions_merged.json
@@ -0,0 +1,784 @@
+{
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+            "l_click": 0,
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+            "yaw": 0.0,
+            "pitch": 1.1282499934559722e-16,
+            "yaw_delta": -0.015328620847867569,
+            "pitch_delta": 0.340629576085387,
+            "move_fwd": -0.0016802588671083678,
+            "move_right": -0.0026326250126633465,
+            "move_up": 0.0012269384277734147,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_fwd": -0.00359118973463096,
+            "move_right": -0.00492560555199895,
+            "move_up": 0.0051296224304568875,
+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": true
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471_summary_merged.json b/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..51b1f63c26ae1a6357fa7929961650ace4e321c2
--- /dev/null
+++ b/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471/session_29928d46-5209-4d00-9fbf-b5c056845ded_9309_9471_summary_merged.json
@@ -0,0 +1,357 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 30,
+    "output_items_preview": [
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+            "is_high_after_merge": false
+        },
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+                92,
+                93
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+            "is_high_after_merge": false
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+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": false
+        },
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+            "merge_n": 5,
+            "merge_frames": [
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+                105,
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+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                111,
+                112,
+                113
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+            "is_high_after_merge": true
+        },
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+                116,
+                117,
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+        },
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+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659_actions_merged.json b/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..07e9247364c385edfc3894538959402ac36639f7
--- /dev/null
+++ b/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659_actions_merged.json
@@ -0,0 +1,652 @@
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+}
\ No newline at end of file
diff --git a/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659_summary_merged.json b/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..f03c7175b1343e8ab5e25ca9864a144ac2e15f9b
--- /dev/null
+++ b/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659/session_2b99e141-3fdd-48c5-b960-8407f430bb1b_3497_3659_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+                1,
+                2,
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+                6,
+                7,
+                8,
+                9
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+        {
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179_actions_merged.json b/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..b1ae049e4d0df9ad6a05e23059c31c943e9ef823
--- /dev/null
+++ b/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179_actions_merged.json
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diff --git a/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179_summary_merged.json b/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d36c841d533de56bb349f1d4f343c1201de0a25e
--- /dev/null
+++ b/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179/session_2de56aa1-54d3-4d99-ab0d-6610560f30bc_15017_15179_summary_merged.json
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+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 25,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 4,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_2e5bb34b-2167-4564-acdc-1d1f151a6e9b_919_1053/session_2e5bb34b-2167-4564-acdc-1d1f151a6e9b_919_1053_actions_merged.json b/session_2e5bb34b-2167-4564-acdc-1d1f151a6e9b_919_1053/session_2e5bb34b-2167-4564-acdc-1d1f151a6e9b_919_1053_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..da7c2bb78846d3aedd1202d600e7e3dbcf2e79ca
--- /dev/null
+++ b/session_2e5bb34b-2167-4564-acdc-1d1f151a6e9b_919_1053/session_2e5bb34b-2167-4564-acdc-1d1f151a6e9b_919_1053_actions_merged.json
@@ -0,0 +1,1136 @@
+{
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+            "yaw_delta": 0.010534792391041492,
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+            "merge_n": 1,
+            "merge_frames": [
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+            "is_high_after_merge": false
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+            "yaw_delta": 0.8889317637125771,
+            "pitch_delta": -0.4493918329687414,
+            "move_fwd": -0.002711643931105873,
+            "move_right": -0.0023835111164749864,
+            "move_up": 0.001953642132047065,
+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_2e96ee33-e4e3-4847-890d-2edc00f4d7f6_26226_26368/session_2e96ee33-e4e3-4847-890d-2edc00f4d7f6_26226_26368_summary_merged.json b/session_2e96ee33-e4e3-4847-890d-2edc00f4d7f6_26226_26368/session_2e96ee33-e4e3-4847-890d-2edc00f4d7f6_26226_26368_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..0c50a2124579fdad82fe2541392399bba1a7b072
--- /dev/null
+++ b/session_2e96ee33-e4e3-4847-890d-2edc00f4d7f6_26226_26368/session_2e96ee33-e4e3-4847-890d-2edc00f4d7f6_26226_26368_summary_merged.json
@@ -0,0 +1,322 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 25,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 4,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                84,
+                85,
+                86,
+                87,
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                89,
+                90,
+                91,
+                92,
+                93
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                94,
+                95,
+                96,
+                97,
+                98
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                99,
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356_actions_merged.json b/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2bb537afec06fb267ed5e1bfd38e51e17c47577e
--- /dev/null
+++ b/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356_actions_merged.json
@@ -0,0 +1,740 @@
+{
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+            "yaw_delta": 0.10547659955372524,
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+            "move_up": 0.002824316013624167,
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+                1,
+                2,
+                3,
+                4
+            ],
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+        },
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+        }
+    }
+}
\ No newline at end of file
diff --git a/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356_summary_merged.json b/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..7fb849c86a439533e584fe3421f9929daa1c2bac
--- /dev/null
+++ b/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356/session_33a9701c-625d-4500-8ef3-f39bd1f6dc1d_28222_28356_summary_merged.json
@@ -0,0 +1,343 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
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+    "num_original_frames": 120,
+    "num_output_items": 28,
+    "output_items_preview": [
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+                1,
+                2,
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+                21,
+                22,
+                23,
+                24
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+        {
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+            "merge_frames": [
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+                26,
+                27,
+                28,
+                29
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+            "merge_frames": [
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+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
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+                92,
+                93,
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+        },
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+                96,
+                97,
+                98,
+                99
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                100
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
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+                102,
+                103,
+                104,
+                105
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 1,
+            "merge_frames": [
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 4,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                112,
+                113,
+                114,
+                115,
+                116
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381_actions_merged.json b/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..706a5c909a37c59d8c4eb0d11848f5c5a53eb812
--- /dev/null
+++ b/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381_actions_merged.json
@@ -0,0 +1,696 @@
+{
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+            "merge_frames": [
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+                6,
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+                9
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+        },
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+            "yaw_delta": 1.4909160627790357,
+            "pitch_delta": -1.1519721071925644,
+            "move_fwd": -0.00630226549561857,
+            "move_right": -0.02294841983048932,
+            "move_up": 0.004672562579599414,
+            "merge_n": 5,
+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
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+            "is_high_after_merge": true
+        },
+        "3": {
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diff --git a/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381_summary_merged.json b/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d6ea551c4c9c0412fc94887a114930ffce524c99
--- /dev/null
+++ b/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381/session_343ff902-f0c0-4931-bca6-872ff9066fec_27219_27381_summary_merged.json
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+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 2,
+            "merge_frames": [
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95,
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 1,
+            "merge_frames": [
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                98,
+                99,
+                100,
+                101,
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106,
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111,
+                112
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152_actions_merged.json b/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e647561eaa3f397581f94bb5c2234404406c927d
--- /dev/null
+++ b/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152_actions_merged.json
@@ -0,0 +1,1224 @@
+{
+    "actions": {
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -3.4619351067379656e-15,
+            "yaw_delta": -1.9457513506833948,
+            "pitch_delta": 0.5791005253912361,
+            "move_fwd": -0.021511871573571158,
+            "move_right": -0.03470105526783963,
+            "move_up": 0.007358900488548695,
+            "merge_n": 4,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_fwd": -0.04352615065310001,
+            "move_right": -0.06456733565783399,
+            "move_up": 0.0015969539709294522,
+            "merge_n": 5,
+            "merge_frames": [
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+                8
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+        },
+        "2": {
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+            "is_high_after_merge": true
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+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 34.063237646655296,
+            "pitch": -4.274534497427418,
+            "yaw_delta": -1.3571747758868185,
+            "pitch_delta": -0.8303141048373535,
+            "move_fwd": -0.007323106688475706,
+            "move_right": -0.02853989482941622,
+            "move_up": 0.006809933631390246,
+            "merge_n": 1,
+            "merge_frames": [
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        "49": {
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+            "ad": 1,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 32.70606287076848,
+            "pitch": -5.104848602264772,
+            "yaw_delta": -1.5534251309414628,
+            "pitch_delta": -0.7031140038263448,
+            "move_fwd": -0.006112115908755752,
+            "move_right": -0.02846692516797036,
+            "move_up": 0.005548110789351791,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152_summary_merged.json b/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..61cb0ad6f7724f8663dba6744d8599ac97bd1a53
--- /dev/null
+++ b/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152/session_3534864b-2289-4aaf-b3ed-10eeeee7acd2_14990_15152_summary_merged.json
@@ -0,0 +1,497 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 50,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 4,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                4,
+                5,
+                6,
+                7,
+                8
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 1,
+            "merge_frames": [
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 4,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+                45,
+                46,
+                47,
+                48
+            ],
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+        },
+        {
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+            ],
+            "is_high_after_merge": true
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+        {
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+            "merge_n": 1,
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+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                51
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                52,
+                53,
+                54,
+                55,
+                56
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                57
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                58,
+                59,
+                60,
+                61,
+                62
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                63
+            ],
+            "is_high_after_merge": true
+        },
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+                64
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+            "is_high_after_merge": true
+        },
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+            "merge_n": 2,
+            "merge_frames": [
+                65,
+                66
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                67,
+                68
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                70,
+                71
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 1,
+            "merge_frames": [
+                72
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                73
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 1,
+            "merge_frames": [
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                80
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                82
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                83
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 1,
+            "merge_frames": [
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                85
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                87
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 3,
+            "merge_frames": [
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 5,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95,
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 5,
+            "merge_frames": [
+                97,
+                98,
+                99,
+                100,
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 5,
+            "merge_frames": [
+                102,
+                103,
+                104,
+                105,
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 4,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 1,
+            "merge_frames": [
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                115
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                116
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 1,
+            "merge_frames": [
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379_actions_merged.json b/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..72cbeaaccb51a3856d7b5ca7c9cf050f64b577bb
--- /dev/null
+++ b/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379_actions_merged.json
@@ -0,0 +1,828 @@
+{
+    "actions": {
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+        },
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diff --git a/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379_summary_merged.json b/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..51d1cc733e5e5be0d94d1f8b9a85e4e896c92d64
--- /dev/null
+++ b/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379/session_35e004f4-ad64-4835-9358-38a58b431252_61249_61379_summary_merged.json
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 1,
+            "merge_frames": [
+                52
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 1,
+            "merge_frames": [
+                53
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 1,
+            "merge_frames": [
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 1,
+            "merge_frames": [
+                55
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                56
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                57
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 1,
+            "merge_frames": [
+                58
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                60
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                61,
+                62,
+                63,
+                64,
+                65
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                66,
+                67,
+                68,
+                69,
+                70
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                71,
+                72,
+                73,
+                74,
+                75
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                76,
+                77,
+                78,
+                79,
+                80
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                81,
+                82,
+                83,
+                84,
+                85
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                86,
+                87,
+                88,
+                89,
+                90
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                91,
+                92,
+                93,
+                94,
+                95
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                96,
+                97,
+                98,
+                99,
+                100
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                101,
+                102,
+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                111,
+                112,
+                113,
+                114,
+                115
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734_actions_merged.json b/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..69dc8daaa23197922c49a985f93f5472e3f6baf1
--- /dev/null
+++ b/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734_actions_merged.json
@@ -0,0 +1,828 @@
+{
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+            "move_up": 0.0028633625579713414,
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+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
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+}
\ No newline at end of file
diff --git a/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734_summary_merged.json b/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c71bdf81f47c934c93f78ab9c09b6d35bc7245d2
--- /dev/null
+++ b/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734/session_36224c74-dfb0-44c0-a59e-e35d874f39e7_4572_4734_summary_merged.json
@@ -0,0 +1,371 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
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+    "num_original_frames": 120,
+    "num_output_items": 32,
+    "output_items_preview": [
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                105
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
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+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                115
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 1,
+            "merge_frames": [
+                116
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528_actions_merged.json b/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c354fd62cb5d357d86959c9f5513c2f893c3fca2
--- /dev/null
+++ b/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528_actions_merged.json
@@ -0,0 +1,828 @@
+{
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+            "move_up": -0.04623340035988828,
+            "merge_n": 5,
+            "merge_frames": [
+                3,
+                4,
+                5,
+                6,
+                7
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+        },
+        "2": {
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+            "move_up": 0.020866150140630903,
+            "merge_n": 5,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111,
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        "30": {
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+            "ad": 2,
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+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 5.091403979516457,
+            "pitch": 3.6491573683356964,
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+            "pitch_delta": -0.7078971847930422,
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+            "move_right": 0.05222917637721373,
+            "move_up": -0.03077041637087579,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        "31": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
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+            "l_click": 0,
+            "r_click": 0,
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+            "pitch": 2.941260183542654,
+            "yaw_delta": 0.4205614715220918,
+            "pitch_delta": -0.1218104142387153,
+            "move_fwd": -0.01747799271045012,
+            "move_right": -0.019124725033417382,
+            "move_up": -0.010310866185957506,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528_summary_merged.json b/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e494013f70cc4f4c142264504fc472811fd3cd45
--- /dev/null
+++ b/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528/session_37efc685-767a-492e-b2c3-d60833ee8232_6366_6528_summary_merged.json
@@ -0,0 +1,371 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 32,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 3,
+            "merge_frames": [
+                0,
+                1,
+                2
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                3,
+                4,
+                5,
+                6,
+                7
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                8,
+                9,
+                10,
+                11,
+                12
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 4,
+            "merge_frames": [
+                13,
+                14,
+                15,
+                16
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                17,
+                18,
+                19,
+                20,
+                21
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 2,
+            "merge_frames": [
+                22,
+                23
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 1,
+            "merge_frames": [
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 4,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                34,
+                35,
+                36,
+                37,
+                38
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                40,
+                41,
+                42,
+                43
+            ],
+            "is_high_after_merge": false
+        },
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+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
+        {
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+                50,
+                51,
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+                53
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
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+                55,
+                56,
+                57
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                58
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                60
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 1,
+            "merge_frames": [
+                61
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                64,
+                65,
+                66
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                67,
+                68,
+                69,
+                70,
+                71
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                72,
+                73,
+                74,
+                75,
+                76
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
+                77,
+                78,
+                79,
+                80
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 1,
+            "merge_frames": [
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                82,
+                83,
+                84,
+                85,
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                87,
+                88,
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95,
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                97,
+                98,
+                99,
+                100,
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                102
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106,
+                107
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111,
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215_actions_merged.json b/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..681f170c575ab82e3a8833762106a0b1c17b46d3
--- /dev/null
+++ b/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215_actions_merged.json
@@ -0,0 +1,850 @@
+{
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diff --git a/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215_summary_merged.json b/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2db02dcb1f2b93c11887c2b8fa9df5e4805a1349
--- /dev/null
+++ b/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215/session_3b609b23-f91d-43da-9918-ce928181f53f_2053_2215_summary_merged.json
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+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                73,
+                74,
+                75,
+                76,
+                77
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                78,
+                79,
+                80,
+                81,
+                82
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                83,
+                84,
+                85,
+                86,
+                87
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                88,
+                89,
+                90,
+                91,
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                93,
+                94,
+                95,
+                96,
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                98,
+                99,
+                100,
+                101,
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106,
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 1,
+            "merge_frames": [
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 1,
+            "merge_frames": [
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 1,
+            "merge_frames": [
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 1,
+            "merge_frames": [
+                115
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789_actions_merged.json b/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..55512d437c772a842a8b3ab37b20b6a8909c9c8d
--- /dev/null
+++ b/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789_actions_merged.json
@@ -0,0 +1,850 @@
+{
+    "actions": {
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+            "scs": 0,
+            "key_1": 0,
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 2.0060158197169955e-15,
+            "yaw_delta": -0.22610841850936936,
+            "pitch_delta": 0.6923682753466011,
+            "move_fwd": 0.0013278577190093252,
+            "move_right": -0.003837044441316503,
+            "move_up": 0.0006743163844164463,
+            "merge_n": 2,
+            "merge_frames": [
+                0,
+                1
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "key_3": 0,
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+            "yaw": -0.22610841850936936,
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+            "yaw_delta": -2.249671191187531,
+            "pitch_delta": 1.4424115277836367,
+            "move_fwd": 0.006404605358018347,
+            "move_right": -0.021558818057309873,
+            "move_up": -0.0015943371771403052,
+            "merge_n": 5,
+            "merge_frames": [
+                2,
+                3,
+                4,
+                5,
+                6
+            ],
+            "is_high_after_merge": true
+        },
+        "2": {
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+            "is_high_after_merge": true
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+}
\ No newline at end of file
diff --git a/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789_summary_merged.json b/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5e0ce1eb39b3e806e2afd95068b8577d72a7a283
--- /dev/null
+++ b/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789/session_3c0dffd0-e38e-4643-bc48-d513943dc20b_11627_11789_summary_merged.json
@@ -0,0 +1,378 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 33,
+    "output_items_preview": [
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+            "merge_frames": [
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+                1
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+            "is_high_after_merge": true
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+        },
+        {
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+            "merge_n": 1,
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+            "is_high_after_merge": false
+        },
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+            "merge_frames": [
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+                82,
+                83,
+                84,
+                85
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
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+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                87,
+                88,
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                94,
+                95,
+                96,
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                98,
+                99,
+                100,
+                101,
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 3,
+            "merge_frames": [
+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                111,
+                112,
+                113,
+                114,
+                115
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871_actions_merged.json b/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..0c7f20bebf592c62b3a16a43260821e9c012ba5b
--- /dev/null
+++ b/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871_actions_merged.json
@@ -0,0 +1,1752 @@
+{
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+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
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+                9
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+        "3": {
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diff --git a/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871_summary_merged.json b/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..15a0c411efcbe564aad90d597c17d40b81124f62
--- /dev/null
+++ b/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871/session_3d3d831b-34de-4d87-8155-f97a8b84b686_13709_13871_summary_merged.json
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 1,
+            "merge_frames": [
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                94
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749_actions_merged.json b/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4aa7490d93b1380c3a21a76939b1a26cbda6e63c
--- /dev/null
+++ b/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749_actions_merged.json
@@ -0,0 +1,1312 @@
+{
+    "actions": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -1.9670315596694523e-15,
+            "yaw_delta": 1.1609145070772797,
+            "pitch_delta": -1.0941648359105953,
+            "move_fwd": 0.011766270388243391,
+            "move_right": -0.0038758988438166823,
+            "move_up": 0.00938158409602019,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "ad": 0,
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+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 1.1609145070772797,
+            "pitch": -1.0941648359105973,
+            "yaw_delta": 0.8267968636587,
+            "pitch_delta": -1.659447550017902,
+            "move_fwd": 0.017074291183370328,
+            "move_right": -0.007046793570788225,
+            "move_up": 0.010172405853387294,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        "2": {
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+            "key_2": 0,
+            "key_3": 0,
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+            "r_click": 0,
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+            "yaw_delta": 0.7795521720198053,
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+            "move_fwd": 0.009300738486507351,
+            "move_right": -0.002028284739963127,
+            "move_up": 0.0030726804681668915,
+            "merge_n": 5,
+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
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+            "move_fwd": 0.00048571906171796555,
+            "move_right": -0.0027154017832358686,
+            "move_up": -0.0010679670042465592,
+            "merge_n": 5,
+            "merge_frames": [
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+                21,
+                22,
+                23,
+                24
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+            "is_high_after_merge": true
+        },
+        "5": {
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+            "move_up": -0.0027759911227142504,
+            "merge_n": 1,
+            "merge_frames": [
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        "53": {
+            "ws": 0,
+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": -67.80421786004541,
+            "pitch": -52.10103692535432,
+            "yaw_delta": -2.1240755379028826,
+            "pitch_delta": -0.05204434512989309,
+            "move_fwd": 0.003359150668849087,
+            "move_right": -0.0024396692617500615,
+            "move_up": -0.002079523215530412,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749_summary_merged.json b/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e99da9f1f67485e9e8d8a1bfd6bd46251daa020d
--- /dev/null
+++ b/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749/session_3f8dbb4f-ad5e-4d54-bf95-3ddbe968a85d_69617_69749_summary_merged.json
@@ -0,0 +1,492 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 54,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 2,
+            "merge_frames": [
+                40,
+                41
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                42,
+                43,
+                44,
+                45,
+                46
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                47,
+                48,
+                49,
+                50,
+                51
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                52,
+                53,
+                54,
+                55,
+                56
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                57,
+                58,
+                59,
+                60,
+                61
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                62,
+                63,
+                64,
+                65,
+                66
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 2,
+            "merge_frames": [
+                67,
+                68
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                69,
+                70,
+                71,
+                72,
+                73
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                75
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                76
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                77
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 1,
+            "merge_frames": [
+                78
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                79,
+                80,
+                81,
+                82,
+                83
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 1,
+            "merge_frames": [
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 1,
+            "merge_frames": [
+                85
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 1,
+            "merge_frames": [
+                87
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                90
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 1,
+            "merge_frames": [
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 1,
+            "merge_frames": [
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 1,
+            "merge_frames": [
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 1,
+            "merge_frames": [
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 1,
+            "merge_frames": [
+                95
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 1,
+            "merge_frames": [
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 1,
+            "merge_frames": [
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                98
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 1,
+            "merge_frames": [
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 1,
+            "merge_frames": [
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 3,
+            "merge_frames": [
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 2,
+            "merge_frames": [
+                112,
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                114
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519_actions_merged.json b/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e2fad7a939a464fcc311cbfd759b28650cd51864
--- /dev/null
+++ b/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519_actions_merged.json
@@ -0,0 +1,674 @@
+{
+    "actions": {
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+        },
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+                8,
+                9
+            ],
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+        },
+        "2": {
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+}
\ No newline at end of file
diff --git a/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519_summary_merged.json b/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..fe3b090fd26350bfd779353a596eeb381ba235bb
--- /dev/null
+++ b/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519/session_3fffb452-1c17-43fa-b473-c9e19ac21433_68357_68519_summary_merged.json
@@ -0,0 +1,322 @@
+{
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+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
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+    "num_output_items": 25,
+    "output_items_preview": [
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+                18,
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+                22,
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+            "merge_frames": [
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
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+                83,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+                92,
+                93,
+                94
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+            "is_high_after_merge": true
+        },
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                115,
+                116,
+                117,
+                118
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329_actions_merged.json b/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..53615b6b97f6a291c531e02836b818bb00e47112
--- /dev/null
+++ b/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329_actions_merged.json
@@ -0,0 +1,1532 @@
+{
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+            "ad": 0,
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+            "key_1": 0,
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+            "pitch": 3.4058115059605674e-16,
+            "yaw_delta": 4.388311398679349,
+            "pitch_delta": -0.3261793179212422,
+            "move_fwd": 0.011157381055972738,
+            "move_right": -0.0071889688954879585,
+            "move_up": -0.005255880513955186,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329_summary_merged.json b/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..b6cb1443385545a276d53544da6d88ce8f90cf23
--- /dev/null
+++ b/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329/session_449763d0-a924-40a4-8830-01e7028f9428_103167_103329_summary_merged.json
@@ -0,0 +1,451 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 64,
+    "output_items_preview": [
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+        {
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+        {
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+            "merge_frames": [
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+            ],
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+        },
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+        {
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+                36
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+        {
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+                44
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+            "is_high_after_merge": true
+        },
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+            "is_high_after_merge": true
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+                48
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+            "is_high_after_merge": true
+        },
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+            "merge_n": 5,
+            "merge_frames": [
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+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                55
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 2,
+            "merge_frames": [
+                56,
+                57
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 5,
+            "merge_frames": [
+                58,
+                59,
+                60,
+                61,
+                62
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                63
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                65
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                66
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                67
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 2,
+            "merge_frames": [
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                70
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                71
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 1,
+            "merge_frames": [
+                72
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                73
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458_actions_merged.json b/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..722db0061f1cf9b2d202f19b9fd6b18a1aa8161c
--- /dev/null
+++ b/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458_actions_merged.json
@@ -0,0 +1,1642 @@
+{
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+            "is_high_after_merge": true
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+                2
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+        },
+        "2": {
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+            "move_up": 9.482953141524498e-05,
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+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458_summary_merged.json b/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..061c4d96fc55a61db29ea80a3a42561865f12873
--- /dev/null
+++ b/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458/session_449763d0-a924-40a4-8830-01e7028f9428_34322_34458_summary_merged.json
@@ -0,0 +1,469 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 69,
+    "output_items_preview": [
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+            "merge_n": 2,
+            "merge_frames": [
+                0,
+                1
+            ],
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+            ],
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+        },
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+        },
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+                8
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
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+            "merge_n": 1,
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+                67
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                68,
+                69,
+                70,
+                71,
+                72
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 4,
+            "merge_frames": [
+                73,
+                74,
+                75,
+                76
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 5,
+            "merge_frames": [
+                77,
+                78,
+                79,
+                80,
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                82
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                83
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                85
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 1,
+            "merge_frames": [
+                87
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 1,
+            "merge_frames": [
+                90
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                91
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304_actions_merged.json b/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..911b767b23160bd1d0e8abb87b156fe8e85eeeea
--- /dev/null
+++ b/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304_actions_merged.json
@@ -0,0 +1,828 @@
+{
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\ No newline at end of file
diff --git a/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304_summary_merged.json b/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c3df45a418ebfac7d89dda46b56eaa16fdb32154
--- /dev/null
+++ b/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304/session_4572b198-2c1c-4920-bcf0-95fcebe12261_56153_56304_summary_merged.json
@@ -0,0 +1,371 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 32,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 3,
+            "merge_frames": [
+                0,
+                1,
+                2
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                3,
+                4,
+                5,
+                6,
+                7
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 2,
+            "merge_frames": [
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 1,
+            "merge_frames": [
+                10
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                11,
+                12,
+                13,
+                14,
+                15
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                16,
+                17,
+                18,
+                19,
+                20
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                21,
+                22,
+                23,
+                24,
+                25
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                26,
+                27,
+                28,
+                29,
+                30
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                31,
+                32,
+                33,
+                34,
+                35
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                36,
+                37,
+                38,
+                39,
+                40
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                41,
+                42,
+                43,
+                44,
+                45
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                46,
+                47,
+                48,
+                49,
+                50
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 2,
+            "merge_frames": [
+                51,
+                52
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                53,
+                54,
+                55,
+                56,
+                57
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                58,
+                59,
+                60,
+                61,
+                62
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 3,
+            "merge_frames": [
+                63,
+                64,
+                65
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                66,
+                67,
+                68,
+                69,
+                70
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
+                71,
+                72,
+                73
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                74,
+                75,
+                76,
+                77,
+                78
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 2,
+            "merge_frames": [
+                80,
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                82,
+                83,
+                84,
+                85,
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                87,
+                88,
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 3,
+            "merge_frames": [
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 2,
+            "merge_frames": [
+                105,
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 1,
+            "merge_frames": [
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144_actions_merged.json b/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4f73688b252e98aec71a807b4dcf31792a331296
--- /dev/null
+++ b/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144_actions_merged.json
@@ -0,0 +1,674 @@
+{
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+        },
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+}
\ No newline at end of file
diff --git a/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144_summary_merged.json b/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5fef70a5a94f83efaef03c7020ee82f59c55f1b5
--- /dev/null
+++ b/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144/session_477feff8-a1ff-4f43-b726-273ca0fa47e9_55982_56144_summary_merged.json
@@ -0,0 +1,322 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
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+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+                85
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+            "is_high_after_merge": false
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+                98,
+                99,
+                100
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                102,
+                103,
+                104,
+                105
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                107,
+                108,
+                109,
+                110
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                113,
+                114,
+                115
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+            "is_high_after_merge": false
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+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296_actions_merged.json b/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..28e26fdcaae7de3256d4fea9705e0790dbfed293
--- /dev/null
+++ b/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296_actions_merged.json
@@ -0,0 +1,960 @@
+{
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+                118,
+                119
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+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296_summary_merged.json b/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e856509e19a89a2ef979f5b5e63d9ebd6ef4c0b4
--- /dev/null
+++ b/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296/session_49fef38f-ae86-498e-b63e-a89d97e809b5_35134_35296_summary_merged.json
@@ -0,0 +1,413 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 38,
+    "output_items_preview": [
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+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
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+            "merge_frames": [
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+                7,
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+                9
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+                12,
+                13,
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+        },
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+                17,
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+                21,
+                22,
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+        {
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+            "merge_frames": [
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+                26,
+                27,
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
+        },
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                94
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
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+                95
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                96,
+                97,
+                98,
+                99,
+                100
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                102,
+                103,
+                104,
+                105
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 1,
+            "merge_frames": [
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 1,
+            "merge_frames": [
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 5,
+            "merge_frames": [
+                112,
+                113,
+                114,
+                115,
+                116
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948_actions_merged.json b/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ba6819641543b847154ab749015b521bcd2a61f9
--- /dev/null
+++ b/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948_actions_merged.json
@@ -0,0 +1,740 @@
+{
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diff --git a/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948_summary_merged.json b/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..09bf6e27134e106032fa2f7cfaea4680bec99565
--- /dev/null
+++ b/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948/session_4a03085f-7724-44dd-a57b-8d7fcc60b8a3_63816_63948_summary_merged.json
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+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                94,
+                95,
+                96,
+                97,
+                98
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                99,
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814_actions_merged.json b/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d51b05f7b568ca243240a6af6a54b44978a9a370
--- /dev/null
+++ b/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814_actions_merged.json
@@ -0,0 +1,1158 @@
+{
+    "actions": {
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+            "key_1": 0,
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -1.4349368400516382e-15,
+            "yaw_delta": 0.840529314494205,
+            "pitch_delta": 0.39020178985105974,
+            "move_fwd": 0.004274258952795387,
+            "move_right": 0.004723177937311248,
+            "move_up": 0.005411457480578729,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "l_click": 0,
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+            "pitch": 0.3902017898510583,
+            "yaw_delta": -1.0220026921221859,
+            "pitch_delta": 0.9444528338895224,
+            "move_fwd": -0.0029921505354405962,
+            "move_right": 0.0030379893923768897,
+            "move_up": 0.006956645786667101,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        "2": {
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+            "is_high_after_merge": true
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diff --git a/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814_summary_merged.json b/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5acc572d7b4c10256fcfa9f5cc0d2ae7079ee29c
--- /dev/null
+++ b/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814/session_4ab8fc08-2ae6-4b27-8c72-e9700e0161bb_4652_4814_summary_merged.json
@@ -0,0 +1,476 @@
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+            "out_idx": 11,
+            "merge_n": 1,
+            "merge_frames": [
+                33
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 1,
+            "merge_frames": [
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 1,
+            "merge_frames": [
+                35
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 4,
+            "merge_frames": [
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+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                40
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                41
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+            "is_high_after_merge": true
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+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                43,
+                44,
+                45,
+                46
+            ],
+            "is_high_after_merge": true
+        },
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+            "merge_n": 5,
+            "merge_frames": [
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+                48,
+                49,
+                50,
+                51
+            ],
+            "is_high_after_merge": true
+        },
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+            "merge_n": 5,
+            "merge_frames": [
+                52,
+                53,
+                54,
+                55,
+                56
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                57,
+                58,
+                59,
+                60,
+                61
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                62,
+                63,
+                64,
+                65,
+                66
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                67,
+                68,
+                69,
+                70,
+                71
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                73,
+                74,
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+                76
+            ],
+            "is_high_after_merge": true
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+            "merge_frames": [
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+                78,
+                79,
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+            ],
+            "is_high_after_merge": true
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+            "merge_frames": [
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+                85,
+                86
+            ],
+            "is_high_after_merge": true
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+        {
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+            "merge_frames": [
+                87,
+                88,
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                96,
+                97,
+                98,
+                99,
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 1,
+            "merge_frames": [
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 1,
+            "merge_frames": [
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 1,
+            "merge_frames": [
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 1,
+            "merge_frames": [
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 1,
+            "merge_frames": [
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 1,
+            "merge_frames": [
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                115
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                116
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 1,
+            "merge_frames": [
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015_actions_merged.json b/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..982f9ef4793d85a0ebf02dd5a1a131f228ae0a24
--- /dev/null
+++ b/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "pitch": -4.971590054966644e-15,
+            "yaw_delta": 0.34929947097438685,
+            "pitch_delta": -0.1950400570443972,
+            "move_fwd": 0.012394287054257231,
+            "move_right": 0.0005592435462751722,
+            "move_up": 0.009685538104903628,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_up": 0.012804186165463055,
+            "merge_n": 5,
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+                93,
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+            "is_high_after_merge": true
+        },
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+            "is_high_after_merge": true
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+            "merge_n": 5,
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+                102,
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+            "is_high_after_merge": false
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+            "merge_n": 5,
+            "merge_frames": [
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+                112,
+                113,
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+            "is_high_after_merge": true
+        },
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+            "key_2": 0,
+            "key_3": 0,
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 4.552408002132154,
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+            "pitch_delta": -0.4352840815691117,
+            "move_fwd": -0.000675517576733408,
+            "move_right": -0.0037358483423287243,
+            "move_up": 0.0009146319312776518,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015_summary_merged.json b/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c0fd0eb3a76a88f242d37e5659422b60b8951391
--- /dev/null
+++ b/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015/session_4bc033f3-9bfe-4b00-8595-09148707bb02_38853_39015_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                54
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                57,
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                64
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                67,
+                68,
+                69
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4bdc80b2-bf82-4a33-a712-fce1775e610a_3397_3522/session_4bdc80b2-bf82-4a33-a712-fce1775e610a_3397_3522_summary_merged.json b/session_4bdc80b2-bf82-4a33-a712-fce1775e610a_3397_3522/session_4bdc80b2-bf82-4a33-a712-fce1775e610a_3397_3522_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c99933e8ab0c0fe1a10fea93a958d8190ea5a077
--- /dev/null
+++ b/session_4bdc80b2-bf82-4a33-a712-fce1775e610a_3397_3522/session_4bdc80b2-bf82-4a33-a712-fce1775e610a_3397_3522_summary_merged.json
@@ -0,0 +1,371 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 32,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 1,
+            "merge_frames": [
+                0
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                1,
+                2,
+                3,
+                4,
+                5
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 1,
+            "merge_frames": [
+                6
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 1,
+            "merge_frames": [
+                7
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                8,
+                9,
+                10,
+                11,
+                12
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                13,
+                14,
+                15,
+                16,
+                17
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                18,
+                19,
+                20,
+                21,
+                22
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 1,
+            "merge_frames": [
+                23
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                24,
+                25,
+                26,
+                27,
+                28
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 2,
+            "merge_frames": [
+                29,
+                30
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                31,
+                32,
+                33,
+                34,
+                35
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                36,
+                37,
+                38,
+                39,
+                40
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 4,
+            "merge_frames": [
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 1,
+            "merge_frames": [
+                50
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                51
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                52
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 2,
+            "merge_frames": [
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 2,
+            "merge_frames": [
+                55,
+                56
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 3,
+            "merge_frames": [
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
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+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                77,
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+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702_actions_merged.json b/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..8222502aa348be242ce3315b9016d581c4ec90de
--- /dev/null
+++ b/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702_actions_merged.json
@@ -0,0 +1,652 @@
+{
+    "actions": {
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+            "scs": 0,
+            "key_1": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 2.2038804158239835e-16,
+            "yaw_delta": -0.05024637111495167,
+            "pitch_delta": -0.0163869331508342,
+            "move_fwd": 0.0024758978405954586,
+            "move_right": 0.00026185870237574455,
+            "move_up": 0.0005932004057233839,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": -0.05024637111495167,
+            "pitch": -0.016386933150833977,
+            "yaw_delta": -0.09062997934435657,
+            "pitch_delta": -0.14370361708939391,
+            "move_fwd": 0.006174402330106331,
+            "move_right": -0.0010721698970094183,
+            "move_up": -0.003058212824296571,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        "2": {
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+            "move_fwd": 0.007478911979022631,
+            "move_right": -0.00036452491833736977,
+            "move_up": -0.004279188287504605,
+            "merge_n": 5,
+            "merge_frames": [
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+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
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+            "move_right": 0.003694344240843787,
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+            "merge_n": 5,
+            "merge_frames": [
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+                22,
+                23,
+                24
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+            "is_high_after_merge": false
+        },
+        "5": {
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702_summary_merged.json b/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d76eeb50d75c235f49434a35ade02a2d246aa004
--- /dev/null
+++ b/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702/session_4c45d8f4-e026-4ca3-a1e4-6d32da434469_33540_33702_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782_actions_merged.json b/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2f4bd29ba09129ad3bbe20b653387648165429de
--- /dev/null
+++ b/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782_actions_merged.json
@@ -0,0 +1,982 @@
+{
+    "actions": {
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+            "scs": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 1.81429679462554e-16,
+            "yaw_delta": -0.9863706341180603,
+            "pitch_delta": 0.9087660455275259,
+            "move_fwd": -0.0007424748946857635,
+            "move_right": -0.0055390424547444445,
+            "move_up": 0.0051996389858269204,
+            "merge_n": 2,
+            "merge_frames": [
+                0,
+                1
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "key_3": 0,
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+            "l_click": 0,
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+            "yaw": -0.9863706341180603,
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+            "yaw_delta": -0.35629239856444883,
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+            "move_fwd": -0.0018866867357351983,
+            "move_right": -0.0040878988610531354,
+            "move_up": -2.6084558999991135e-05,
+            "merge_n": 1,
+            "merge_frames": [
+                2
+            ],
+            "is_high_after_merge": true
+        },
+        "2": {
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+            "move_fwd": 0.0008196169295696735,
+            "move_right": -0.004980933911867822,
+            "move_up": 0.004915898709153753,
+            "merge_n": 1,
+            "merge_frames": [
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diff --git a/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782_summary_merged.json b/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..343a815df21e0b37e9ef5a7935ee83aefaeaad52
--- /dev/null
+++ b/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782/session_4d2bcd02-212e-4796-abaa-f4aa46b7ed10_7620_7782_summary_merged.json
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+            "merge_frames": [
+                21
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 1,
+            "merge_frames": [
+                22
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                23
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 1,
+            "merge_frames": [
+                25
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                26
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                27
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                28,
+                29,
+                30,
+                31,
+                32
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                33,
+                34,
+                35,
+                36,
+                37
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                38,
+                39,
+                40,
+                41,
+                42
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                43,
+                44,
+                45,
+                46,
+                47
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                48,
+                49,
+                50,
+                51,
+                52
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                53,
+                54,
+                55,
+                56,
+                57
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                58,
+                59,
+                60,
+                61,
+                62
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                63,
+                64,
+                65,
+                66,
+                67
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                68,
+                69,
+                70,
+                71,
+                72
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                73,
+                74,
+                75,
+                76,
+                77
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                78,
+                79,
+                80,
+                81,
+                82
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 5,
+            "merge_frames": [
+                83,
+                84,
+                85,
+                86,
+                87
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 5,
+            "merge_frames": [
+                88,
+                89,
+                90,
+                91,
+                92
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 5,
+            "merge_frames": [
+                93,
+                94,
+                95,
+                96,
+                97
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 5,
+            "merge_frames": [
+                98,
+                99,
+                100,
+                101,
+                102
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 5,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106,
+                107
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 5,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111,
+                112
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161_actions_merged.json b/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..7b9850f76691dd87e1dbaf054dff4966525dbaf9
--- /dev/null
+++ b/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161_actions_merged.json
@@ -0,0 +1,652 @@
+{
+    "actions": {
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 4.516218993620483e-16,
+            "yaw_delta": 0.8160326704885961,
+            "pitch_delta": -0.5384866284161816,
+            "move_fwd": -0.001831354438461516,
+            "move_right": -0.014688360768631385,
+            "move_up": 0.009968947105514766,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "yaw_delta": 1.361689322427793,
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+            "move_right": -0.020608222423994793,
+            "move_up": 0.01801471859600897,
+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
+        "2": {
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+            "is_high_after_merge": true
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+                117,
+                118,
+                119
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161_summary_merged.json b/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..569e5fd20919523145e747fc4ba6ee9839b141b9
--- /dev/null
+++ b/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161/session_4d95da89-5c7c-4c47-8772-e783db6d7c0c_999_1161_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
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+                36,
+                37,
+                38,
+                39
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+            "merge_frames": [
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+                44
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+            "is_high_after_merge": false
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+                46,
+                47,
+                48,
+                49
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+            "is_high_after_merge": true
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+                69
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+            "is_high_after_merge": false
+        },
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+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243_actions_merged.json b/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..fd9bf71b9be7d0046aa9fba01472a2bedbc6fbe3
--- /dev/null
+++ b/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+                2,
+                3,
+                4
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243_summary_merged.json b/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e0ec2695b1501f3046f34ec71df6b0005f12b738
--- /dev/null
+++ b/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243/session_504315c0-17fd-4259-9d2c-fd2b25fdcbea_12081_12243_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
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+        },
+        {
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+                34
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+                39
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+                44
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+            "is_high_after_merge": true
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+        {
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+            "is_high_after_merge": false
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+            "merge_frames": [
+                70,
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+                72,
+                73,
+                74
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5059d234-992a-48e6-a9e5-c5777943ecfa_6116_6278/session_5059d234-992a-48e6-a9e5-c5777943ecfa_6116_6278_summary_merged.json b/session_5059d234-992a-48e6-a9e5-c5777943ecfa_6116_6278/session_5059d234-992a-48e6-a9e5-c5777943ecfa_6116_6278_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..76393dda833f5a0fbb91d07497a5f73b228391bc
--- /dev/null
+++ b/session_5059d234-992a-48e6-a9e5-c5777943ecfa_6116_6278/session_5059d234-992a-48e6-a9e5-c5777943ecfa_6116_6278_summary_merged.json
@@ -0,0 +1,378 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 33,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5063d3be-60e0-4970-9948-ed529a8c5eed_12505_12667/session_5063d3be-60e0-4970-9948-ed529a8c5eed_12505_12667_summary_merged.json b/session_5063d3be-60e0-4970-9948-ed529a8c5eed_12505_12667/session_5063d3be-60e0-4970-9948-ed529a8c5eed_12505_12667_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d7473b6ad17b4e691b0ff21c402b48670ebf5031
--- /dev/null
+++ b/session_5063d3be-60e0-4970-9948-ed529a8c5eed_12505_12667/session_5063d3be-60e0-4970-9948-ed529a8c5eed_12505_12667_summary_merged.json
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+                119
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+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993_actions_merged.json b/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..f604aa1e761474a78b6de34bc35472eded3748bc
--- /dev/null
+++ b/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993_actions_merged.json
@@ -0,0 +1,674 @@
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+}
\ No newline at end of file
diff --git a/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993_summary_merged.json b/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d18cd55f35fd536038c150f8a41d6c364f910080
--- /dev/null
+++ b/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993/session_50e55c8f-b939-4b5c-86b5-e0b53d199d27_19831_19993_summary_merged.json
@@ -0,0 +1,322 @@
+{
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+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "num_original_frames": 120,
+    "num_output_items": 25,
+    "output_items_preview": [
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+            "merge_frames": [
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+                1,
+                2,
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+                6,
+                7,
+                8,
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+                11,
+                12,
+                13,
+                14
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+                16,
+                17,
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+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
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+            "merge_frames": [
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+                26,
+                27,
+                28,
+                29
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+                67,
+                68,
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+            "is_high_after_merge": true
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+        {
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+            "merge_frames": [
+                70,
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+                72,
+                73,
+                74
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                82,
+                83,
+                84
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 4,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188_actions_merged.json b/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188_actions_merged.json
new file mode 100644
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--- /dev/null
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diff --git a/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188_summary_merged.json b/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ffc68b1c09f0dff80d0d63b054f6eb3a5c006f8b
--- /dev/null
+++ b/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188/session_53fe4b31-2877-4ca6-9131-696be96b3145_39_188_summary_merged.json
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+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974_actions_merged.json b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d176cb344ca2735f3597f5effd57702f92f8cfab
--- /dev/null
+++ b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -1.6363391928355517e-15,
+            "yaw_delta": 0.14144130970296942,
+            "pitch_delta": 0.44159165154483276,
+            "move_fwd": -0.00018419109067689985,
+            "move_right": -0.001761191358884088,
+            "move_up": -0.0034812825845411902,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_right": -0.0028093594829778647,
+            "move_up": -0.0012808668893136681,
+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": false
+        },
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+            "move_up": -5.002256299288738e-05,
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974_summary_merged.json b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..0637ce65cdd97e61a2067f337c5096da1e036890
--- /dev/null
+++ b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974/session_5baf4e1b-582a-4fbc-9391-3e794057c759_25837_25974_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
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+        {
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+            "merge_frames": [
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+                6,
+                7,
+                8,
+                9
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                34
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+            "merge_frames": [
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+                36,
+                37,
+                38,
+                39
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
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+                42,
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+                44
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+            "is_high_after_merge": true
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+        {
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+                46,
+                47,
+                48,
+                49
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+        {
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                67,
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+                69
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606_actions_merged.json b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..f9300e539adc62a2ded0c8c179cfa469fae33da9
--- /dev/null
+++ b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+}
\ No newline at end of file
diff --git a/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606_summary_merged.json b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..65521801130519b1e876ee7fa3aeec962843f0d1
--- /dev/null
+++ b/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606/session_5baf4e1b-582a-4fbc-9391-3e794057c759_6444_6606_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_frames": [
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+                1,
+                2,
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+                6,
+                7,
+                8,
+                9
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+        {
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+            "merge_frames": [
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+                13,
+                14
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                26,
+                27,
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+                29
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+                72,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457_actions_merged.json b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..0afe66ac67b44498be9e1ef439ad2ab3ec9d2f92
--- /dev/null
+++ b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "key_1": 0,
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+            "pitch": -5.081245490633633e-16,
+            "yaw_delta": -0.8426724931264857,
+            "pitch_delta": 0.7228646659574414,
+            "move_fwd": 3.67133728532999e-05,
+            "move_right": -0.0062928338394356844,
+            "move_up": 0.0045790192921401004,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_fwd": -0.00012399707223932283,
+            "move_right": -0.006158549937478407,
+            "move_up": 0.006966780082977799,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
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+        },
+        "2": {
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diff --git a/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457_summary_merged.json b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..38a09a38b7c4670bd89022a0d25d1cb665667985
--- /dev/null
+++ b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_14295_14457_summary_merged.json
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376_actions_merged.json b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..fc1f4d9edbb2acbf28254cdacce071073dd1a0ee
--- /dev/null
+++ b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376_actions_merged.json
@@ -0,0 +1,740 @@
+{
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+            "l_click": 0,
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+            "yaw": 0.0,
+            "pitch": -2.398865092901298e-16,
+            "yaw_delta": -0.22386444155870322,
+            "pitch_delta": 1.0817692166028836,
+            "move_fwd": -0.0011119952784230216,
+            "move_right": -0.0003959286472915592,
+            "move_up": 0.002053584640666438,
+            "merge_n": 3,
+            "merge_frames": [
+                0,
+                1,
+                2
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_right": -0.0021008703586075737,
+            "move_up": 0.003868425573544331,
+            "merge_n": 5,
+            "merge_frames": [
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+                117,
+                118,
+                119
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376_summary_merged.json b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..6ed0619f978502c76b7dc4393b2ff6236609da9b
--- /dev/null
+++ b/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376/session_5e64c89d-34ce-49a3-949a-dc90385cdbcc_33214_33376_summary_merged.json
@@ -0,0 +1,343 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 28,
+    "output_items_preview": [
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+            "merge_n": 3,
+            "merge_frames": [
+                0,
+                1,
+                2
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+                17
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+            "merge_frames": [
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+                19,
+                20,
+                21,
+                22
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                24,
+                25,
+                26,
+                27
+            ],
+            "is_high_after_merge": true
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+            "merge_frames": [
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
+        },
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                72,
+                73,
+                74,
+                75,
+                76
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                77,
+                78,
+                79,
+                80,
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                83,
+                84,
+                85,
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                87,
+                88,
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95,
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                97,
+                98,
+                99,
+                100,
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                102,
+                103,
+                104,
+                105,
+                106
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                112,
+                113,
+                114,
+                115,
+                116
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472_actions_merged.json b/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..3b49b3d4f8b03c6c6b5fbcac883096a7cca07eba
--- /dev/null
+++ b/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+}
\ No newline at end of file
diff --git a/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472_summary_merged.json b/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d76eeb50d75c235f49434a35ade02a2d246aa004
--- /dev/null
+++ b/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472/session_5ed59c41-af9e-4368-a0ce-30d536d34895_5327_5472_summary_merged.json
@@ -0,0 +1,315 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
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+    "num_output_items": 24,
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+            "merge_frames": [
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+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                87,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
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+                96,
+                97,
+                98,
+                99
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594_actions_merged.json b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..db5664805cf154f3462c07f4952d246bb74e740a
--- /dev/null
+++ b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "scs": 0,
+            "key_1": 0,
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+            "pitch": 1.4748697948944442e-16,
+            "yaw_delta": -0.5415693768528342,
+            "pitch_delta": 1.1784566515088866,
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diff --git a/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594_summary_merged.json b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..42e09478782a57b53b907a0c71635ad4ead0c9e8
--- /dev/null
+++ b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594/session_669b3fbf-3658-4943-9f28-54b2251a7e61_22432_22594_summary_merged.json
@@ -0,0 +1,315 @@
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+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834_actions_merged.json b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..9b9e2edebdc8a213ab859aa45036990fcee096a4
--- /dev/null
+++ b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834_actions_merged.json
@@ -0,0 +1,674 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 1.5535152693431045e-17,
+            "yaw_delta": -0.15605451925296165,
+            "pitch_delta": -0.015068682863309688,
+            "move_fwd": -0.0012248302182598753,
+            "move_right": 0.0034883772806152,
+            "move_up": 0.0010145201345399149,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_right": -0.01839630079425911,
+            "move_up": 0.002351026871561919,
+            "merge_n": 5,
+            "merge_frames": [
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+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834_summary_merged.json b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ddb7af148b6d5325411497572dfdbaf5fa83c679
--- /dev/null
+++ b/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834/session_669b3fbf-3658-4943-9f28-54b2251a7e61_69684_69834_summary_merged.json
@@ -0,0 +1,322 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 25,
+    "output_items_preview": [
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+                2,
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+                7,
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+                12,
+                13,
+                14
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+                16,
+                17,
+                18,
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+            "merge_frames": [
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+                22,
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                83
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+            "is_high_after_merge": true
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+            "merge_n": 5,
+            "merge_frames": [
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+                85,
+                86,
+                87,
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                89,
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+                91,
+                92,
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+                95,
+                96,
+                97,
+                98
+            ],
+            "is_high_after_merge": false
+        },
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+            "merge_n": 5,
+            "merge_frames": [
+                99,
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439_actions_merged.json b/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2b3a94c9e0c3c4dcf733d8fccc78fe69b3ebd956
--- /dev/null
+++ b/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+}
\ No newline at end of file
diff --git a/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439_summary_merged.json b/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..19367dccc950d8c7f3edd1325d276ec0e71f8486
--- /dev/null
+++ b/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439/session_72b53897-cfca-42cb-b60d-1f928f313a1c_1277_1439_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
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+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "num_output_items": 24,
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+                9
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+                16,
+                17,
+                18,
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+                22,
+                23,
+                24
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+                26,
+                27,
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+            "is_high_after_merge": false
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+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
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+                77,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+                93,
+                94
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605_actions_merged.json b/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..254c3bafcbc1e37e4098dcdfe955fe9746b4842b
--- /dev/null
+++ b/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605_actions_merged.json
@@ -0,0 +1,1026 @@
+{
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+            "key_1": 0,
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+            "yaw_delta": 0.16713832613567092,
+            "pitch_delta": -0.9969988611376185,
+            "move_fwd": 0.002106057565894177,
+            "move_right": 0.0009991490655980556,
+            "move_up": -0.0025434741158780853,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "yaw_delta": -0.5346094025663319,
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+            "move_fwd": 0.004556063359549351,
+            "move_right": -0.0006808661286860861,
+            "move_up": -0.0006343401829224182,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        "2": {
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+    }
+}
\ No newline at end of file
diff --git a/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605_summary_merged.json b/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..65ce67d9a17ce7ac7a2738fe0a759a57dc076699
--- /dev/null
+++ b/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605/session_7303d3a9-90fd-433d-987c-8c90ce49c821_3443_3605_summary_merged.json
@@ -0,0 +1,434 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
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+    "flip_pitch": true,
+    "thresholds": {
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
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+                115
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329_actions_merged.json b/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..faaeca7ea73dbcfa999c2531a7017b19fd13ee53
--- /dev/null
+++ b/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "pitch": -8.466495579051188e-16,
+            "yaw_delta": 2.5510511132343083,
+            "pitch_delta": 0.774546393290677,
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+            "move_up": 0.0024679692633051077,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
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+                3,
+                4
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+        },
+        "1": {
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+            "yaw": 2.5510511132343083,
+            "pitch": 0.7745463932906761,
+            "yaw_delta": 2.9445106094457856,
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+            "move_right": 0.0059191751143455335,
+            "move_up": 0.0019168228912662191,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
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diff --git a/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329_summary_merged.json b/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4a194fa2231402e71b44e74428bbd00e62034bd5
--- /dev/null
+++ b/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329/session_773b6d5f-4ce9-49c4-8aa6-723ec19110f1_22167_22329_summary_merged.json
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+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852_actions_merged.json b/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..7c4f5cbe7d040851d99cdeed0c8a9affbef3d2b2
--- /dev/null
+++ b/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
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+            "pitch": 4.325569497687149e-16,
+            "yaw_delta": 0.01931408324318795,
+            "pitch_delta": -0.2974676124102008,
+            "move_fwd": -0.001242940644324539,
+            "move_right": -0.0009992015715890317,
+            "move_up": 0.00045043639827006083,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_up": -0.0006811882580388828,
+            "merge_n": 5,
+            "merge_frames": [
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+            "merge_frames": [
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+                101,
+                102,
+                103,
+                104
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+            "merge_n": 5,
+            "merge_frames": [
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+                111,
+                112,
+                113,
+                114
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+        },
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+            "ad": 0,
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+            "key_2": 0,
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+            "yaw": -0.5529894275281606,
+            "pitch": -2.490545283542341,
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+            "move_fwd": 0.002815619597774395,
+            "move_right": -0.0034466266073863447,
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+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852_summary_merged.json b/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4a92d280f114a1b4c32d6271e427224f627253ba
--- /dev/null
+++ b/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852/session_7771192d-94f0-451e-9e64-ddd49fe85cea_9690_9852_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                41,
+                42,
+                43,
+                44
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                54
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+        {
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+            "merge_frames": [
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+            "merge_frames": [
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+                64
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                67,
+                68,
+                69
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620_actions_merged.json b/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..3bd0513e19cb3c010885ab67cdfd1aa0f8dfffff
--- /dev/null
+++ b/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "move_up": -0.006349622537458606,
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+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
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+            "yaw_delta": 0.3301185496810888,
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+                9
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+    }
+}
\ No newline at end of file
diff --git a/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620_summary_merged.json b/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..40bacf36ecce33a665e9a102864eba0a00dc4685
--- /dev/null
+++ b/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620/session_78b06017-cd7b-441c-ba48-33c04e37a82a_27458_27620_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 24,
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+                18,
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+                24
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
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+                77,
+                78,
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+            "is_high_after_merge": false
+        },
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+            "merge_frames": [
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+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+                92,
+                93,
+                94
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456_actions_merged.json b/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..9dacd6ccdd307bc972ff769be423d11d33f3ce73
--- /dev/null
+++ b/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456_actions_merged.json
@@ -0,0 +1,652 @@
+{
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diff --git a/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456_summary_merged.json b/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d5578092f3d766a1d07060faca5158c1193890b1
--- /dev/null
+++ b/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456/session_7aca7552-56d2-4ac0-be30-aed9c5dfc8ea_66294_66456_summary_merged.json
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731_actions_merged.json b/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d17291158787e2a1191e1b705e13b4b82a957a1a
--- /dev/null
+++ b/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731_actions_merged.json
@@ -0,0 +1,1114 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -1.8314732621220228e-15,
+            "yaw_delta": 0.009147317876681882,
+            "pitch_delta": 0.9444239008199168,
+            "move_fwd": -0.002053594739122323,
+            "move_right": 0.0010514458696558283,
+            "move_up": 0.00521845078532804,
+            "merge_n": 1,
+            "merge_frames": [
+                0
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "yaw_delta": 0.322121092365137,
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+            "move_right": 0.0014505013816984188,
+            "move_up": 0.007271880968086055,
+            "merge_n": 1,
+            "merge_frames": [
+                1
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+            "is_high_after_merge": true
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diff --git a/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731_summary_merged.json b/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..86e65dd27fa315eea3f6c2a4d23913d8528b571b
--- /dev/null
+++ b/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731/session_7b696849-45f1-460f-a550-d70dc212e8b7_137569_137731_summary_merged.json
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                42
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 1,
+            "merge_frames": [
+                43
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 1,
+            "merge_frames": [
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 1,
+            "merge_frames": [
+                45
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 1,
+            "merge_frames": [
+                46
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                47
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 1,
+            "merge_frames": [
+                48
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 4,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 5,
+            "merge_frames": [
+                84,
+                85,
+                86,
+                87,
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 1,
+            "merge_frames": [
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                90
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 3,
+            "merge_frames": [
+                91,
+                92,
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 1,
+            "merge_frames": [
+                95
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 5,
+            "merge_frames": [
+                96,
+                97,
+                98,
+                99,
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 5,
+            "merge_frames": [
+                101,
+                102,
+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 5,
+            "merge_frames": [
+                111,
+                112,
+                113,
+                114,
+                115
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755_actions_merged.json b/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..13cacd199fb8e7aa05e8c019bc7ac3d17d8a6c03
--- /dev/null
+++ b/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755_actions_merged.json
@@ -0,0 +1,828 @@
+{
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+            "yaw": 0.0,
+            "pitch": 5.015535271449135e-16,
+            "yaw_delta": 0.9597729683206069,
+            "pitch_delta": -0.8933320614635336,
+            "move_fwd": 0.0004747664868366185,
+            "move_right": 0.005092479939305561,
+            "move_up": -0.0022321260481933175,
+            "merge_n": 2,
+            "merge_frames": [
+                0,
+                1
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_up": -0.012904330446921113,
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+        },
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+}
\ No newline at end of file
diff --git a/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755_summary_merged.json b/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..dd8adf576c316101d213d36a1172ec4f29686e70
--- /dev/null
+++ b/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755/session_7b696849-45f1-460f-a550-d70dc212e8b7_96593_96755_summary_merged.json
@@ -0,0 +1,371 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "num_original_frames": 120,
+    "num_output_items": 32,
+    "output_items_preview": [
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+            "is_high_after_merge": true
+        },
+        {
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+                83,
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+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                86,
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+                88,
+                89,
+                90
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+            "is_high_after_merge": false
+        },
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+            "merge_frames": [
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+                98,
+                99,
+                100
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                101,
+                102,
+                103,
+                104,
+                105
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
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+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                112,
+                113,
+                114,
+                115
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+            "is_high_after_merge": true
+        },
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+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885_actions_merged.json b/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4b9f18773f29251f5a4373f92ccf07fdfd1a8e09
--- /dev/null
+++ b/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885_actions_merged.json
@@ -0,0 +1,652 @@
+{
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diff --git a/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885_summary_merged.json b/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5c01a8a1522006e481f4bc068256fb6e1e56ddbd
--- /dev/null
+++ b/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885/session_7d3d85d3-88e4-4bb9-9175-e37107100f2e_1723_1885_summary_merged.json
@@ -0,0 +1,315 @@
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+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654_actions_merged.json b/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..6e81321b7832339a596ae2c54db058a96e71f504
--- /dev/null
+++ b/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -7.279375086829916e-17,
+            "yaw_delta": -0.3335647798328978,
+            "pitch_delta": -0.3817034481207818,
+            "move_fwd": 0.0036869282727015635,
+            "move_right": 0.020173040034780716,
+            "move_up": 0.004015366243350499,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_fwd": 0.006997284791759598,
+            "move_right": 0.031376383026328065,
+            "move_up": 0.005059367425041657,
+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": false
+        },
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+                118,
+                119
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654_summary_merged.json b/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..34d3d22417516a4e4c0e5b89d64c617ac45dbee3
--- /dev/null
+++ b/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654/session_8383791d-2df9-4bac-89b6-4cc01df5f4d1_57492_57654_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
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+                34
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+                36,
+                37,
+                38,
+                39
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+            "merge_frames": [
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+                44
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+                47,
+                48,
+                49
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+            "merge_frames": [
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+                67,
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429_actions_merged.json b/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..cb06dc6d806515b54423a58b1266132523d61f34
--- /dev/null
+++ b/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429_actions_merged.json
@@ -0,0 +1,1136 @@
+{
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+}
\ No newline at end of file
diff --git a/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429_summary_merged.json b/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ea7a25677c3ab712efaca8ecb187f90283c2cea8
--- /dev/null
+++ b/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429/session_85e88c3e-e332-4287-87e2-b93b50880bc7_44267_44429_summary_merged.json
@@ -0,0 +1,469 @@
+{
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+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 46,
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454_actions_merged.json b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..23ac28f5d730bbae9cec93af9b04fa9f62ba0deb
--- /dev/null
+++ b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454_actions_merged.json
@@ -0,0 +1,1224 @@
+{
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diff --git a/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454_summary_merged.json b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..1f98cb8bfb75d302e46705e746daa3520ab4a3cc
--- /dev/null
+++ b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_30292_30454_summary_merged.json
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+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 1,
+            "merge_frames": [
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 4,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774_actions_merged.json b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..1fca1bddac6622a6f504e02310c707c2b1a1ee68
--- /dev/null
+++ b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
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+            "pitch": 3.46762725049909e-17,
+            "yaw_delta": 0.07013592557683523,
+            "pitch_delta": 0.05752765021139401,
+            "move_fwd": -0.00018290995120283276,
+            "move_right": 0.00014560196433004228,
+            "move_up": -0.00022984308739737918,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
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+            "move_up": -0.0003496673324599959,
+            "merge_n": 5,
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+            "is_high_after_merge": false
+        },
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+                106,
+                107,
+                108,
+                109
+            ],
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+        },
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+            "move_right": 0.006348887440132529,
+            "move_up": 0.0016259463601460515,
+            "merge_n": 5,
+            "merge_frames": [
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+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
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+            "key_2": 0,
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 4.393142309402123,
+            "pitch": 0.8067846125886994,
+            "yaw_delta": 0.26911572302213926,
+            "pitch_delta": 0.061547272854743706,
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+            "move_right": 0.0033159931272235157,
+            "move_up": 0.000597432799740365,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774_summary_merged.json b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d76eeb50d75c235f49434a35ade02a2d246aa004
--- /dev/null
+++ b/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774/session_869aa0d2-9557-4f3e-8bc9-c46ca5e2c8ff_47612_47774_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617_actions_merged.json b/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ad8d572f8d32a79b2f5d698b8d5655a2a1a5089c
--- /dev/null
+++ b/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617_actions_merged.json
@@ -0,0 +1,740 @@
+{
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+            "yaw_delta": -0.2383985555871675,
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+            "move_up": 0.0034132449016771307,
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+                1,
+                2,
+                3,
+                4
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+            "is_high_after_merge": false
+        },
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+}
\ No newline at end of file
diff --git a/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617_summary_merged.json b/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..eb836231d9d6dba5a32d4c6dffd409e74332cfc6
--- /dev/null
+++ b/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617/session_8996ece6-f2c1-49c4-aab7-fee6c30f2ca2_11455_11617_summary_merged.json
@@ -0,0 +1,343 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
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+    "num_original_frames": 120,
+    "num_output_items": 28,
+    "output_items_preview": [
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+            "merge_frames": [
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+                1,
+                2,
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+                26,
+                27
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+            "merge_frames": [
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+                86,
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+                88
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+            "is_high_after_merge": true
+        },
+        {
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+            "is_high_after_merge": true
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+                94,
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+            "is_high_after_merge": true
+        },
+        {
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+                99,
+                100,
+                101
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+        },
+        {
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+            "merge_frames": [
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+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 2,
+            "merge_frames": [
+                112,
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
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+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044_actions_merged.json b/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2f713cd76c84257c0c038583992d004132439cd7
--- /dev/null
+++ b/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "pitch": -6.743998598527978e-16,
+            "yaw_delta": 0.48333917010441496,
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+            "move_right": 0.024442127358823264,
+            "move_up": -0.00045569871890806154,
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+                1,
+                2,
+                3,
+                4
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+            "is_high_after_merge": true
+        },
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+            "move_up": -0.0071423550366536475,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
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diff --git a/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044_summary_merged.json b/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5e53cb4184e8434e4003a7359b4914c8e583dcbc
--- /dev/null
+++ b/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044/session_89bfb598-cd71-4c27-82a6-829c090ed587_18882_19044_summary_merged.json
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+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821_actions_merged.json b/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e6a612a300d3a8cb80df9265a8ae37abc86a979c
--- /dev/null
+++ b/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
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+            "pitch": -2.5804608486898316e-17,
+            "yaw_delta": -0.24625537306400247,
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+            "move_fwd": 0.000763308732901101,
+            "move_right": -0.0007622165104029518,
+            "move_up": -0.0003566664858103179,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_up": 0.00017872476965800059,
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+                117,
+                118,
+                119
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821_summary_merged.json b/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c7fb1438e49894b005fa8b44667f60c7878c41de
--- /dev/null
+++ b/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821/session_9155f5b9-6235-484f-990d-fbd3010a791e_65699_65821_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
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+                36,
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+                44
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+                67,
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+            "is_high_after_merge": true
+        },
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+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137_actions_merged.json b/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ca9aaa6499567947d33ac5ad06b7b5c6a2a25da1
--- /dev/null
+++ b/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+                2,
+                3,
+                4
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+        },
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+}
\ No newline at end of file
diff --git a/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137_summary_merged.json b/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..de6e0b47330b9c79bbf87bb933b9cef077e67263
--- /dev/null
+++ b/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137/session_931c5947-865e-4774-adb4-d2734a2998df_21018_21137_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 24,
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+                17,
+                18,
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
+                75,
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+                77,
+                78,
+                79
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+                92,
+                93,
+                94
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_93a5f8cb-d7eb-4e5a-9913-77ef1487ce61_45017_45179/session_93a5f8cb-d7eb-4e5a-9913-77ef1487ce61_45017_45179_actions_merged.json b/session_93a5f8cb-d7eb-4e5a-9913-77ef1487ce61_45017_45179/session_93a5f8cb-d7eb-4e5a-9913-77ef1487ce61_45017_45179_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..27f3db392551dbc5b7fa07b63e31fd9acf9d2e7d
--- /dev/null
+++ b/session_93a5f8cb-d7eb-4e5a-9913-77ef1487ce61_45017_45179/session_93a5f8cb-d7eb-4e5a-9913-77ef1487ce61_45017_45179_actions_merged.json
@@ -0,0 +1,1246 @@
+{
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diff --git a/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841_actions_merged.json b/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e0ec323d65b75cf708c6c035f769ddebd126e363
--- /dev/null
+++ b/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841_actions_merged.json
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diff --git a/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841_summary_merged.json b/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..a14bd20a3d6d2da8dd348ba8b2034afa909dcadd
--- /dev/null
+++ b/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841/session_94797ff8-a780-4f2b-8e0b-0242f8ffee19_51679_51841_summary_merged.json
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                97,
+                98,
+                99,
+                100,
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                102,
+                103,
+                104,
+                105,
+                106
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                112,
+                113,
+                114,
+                115,
+                116
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996_actions_merged.json b/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..19ebf723e4042bea0fac5071092120eb3d55555c
--- /dev/null
+++ b/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996_actions_merged.json
@@ -0,0 +1,652 @@
+{
+    "actions": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 4.212604547635694e-19,
+            "yaw_delta": 0.3345858111084965,
+            "pitch_delta": 0.1638726575213981,
+            "move_fwd": 0.00022836226925559966,
+            "move_right": -0.004143725232869933,
+            "move_up": -0.0020984923733100196,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "key_3": 0,
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+            "l_click": 0,
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+            "yaw": 0.3345858111084965,
+            "pitch": 0.1638726575213981,
+            "yaw_delta": 0.38409847447030643,
+            "pitch_delta": 0.27547058874327734,
+            "move_fwd": 0.0001719258529680563,
+            "move_right": -0.003984193960750136,
+            "move_up": -0.002887837493891281,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        "2": {
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+            "move_fwd": 0.0001783086193686988,
+            "move_right": -0.002385242558456027,
+            "move_up": -0.0036879960336285854,
+            "merge_n": 5,
+            "merge_frames": [
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+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        "3": {
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+        "5": {
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": -3.3792256484798884,
+            "pitch": 2.2599502976850125,
+            "yaw_delta": -1.1268171897010006,
+            "pitch_delta": 0.09223134398160937,
+            "move_fwd": 0.004967005460666769,
+            "move_right": 0.034977572795181974,
+            "move_up": -0.009377435081871636,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996_summary_merged.json b/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..00a74c4d3bd155d1f4aad7a7e6c057c696082fda
--- /dev/null
+++ b/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996/session_a0fb8289-7d55-4af3-9d2b-2b3e4a12ab65_99834_99996_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324_actions_merged.json b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..3fde07d14b721daaac419c9c81dd34910184e098
--- /dev/null
+++ b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324_actions_merged.json
@@ -0,0 +1,696 @@
+{
+    "actions": {
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+            "scs": 0,
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+            "l_click": 0,
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+            "yaw": 0.0,
+            "pitch": -2.2484027579293707e-16,
+            "yaw_delta": -2.032393140708791,
+            "pitch_delta": -0.07648256463828376,
+            "move_fwd": -0.0045323314083944395,
+            "move_right": 0.005753168634171004,
+            "move_up": -0.0011486243154858581,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "r_click": 0,
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+            "yaw_delta": -3.8188527609391087,
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+            "move_up": -0.00017794057708495715,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
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+        },
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+                118,
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324_summary_merged.json b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..da2cc479a0ad5dc77155ee53b2b35a15742a7acc
--- /dev/null
+++ b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324/session_a5bf18b5-15d4-4843-8269-3f31154e3736_6162_6324_summary_merged.json
@@ -0,0 +1,329 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 26,
+    "output_items_preview": [
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+                1,
+                2,
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+                13,
+                14
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+        {
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+            "merge_frames": [
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+                16,
+                17,
+                18,
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+        },
+        {
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+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
+                25,
+                26,
+                27,
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+            "is_high_after_merge": true
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                79
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                80,
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                82,
+                83,
+                84,
+                85,
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                88,
+                89,
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95,
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                97,
+                98,
+                99,
+                100,
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                102,
+                103,
+                104,
+                105,
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                112,
+                113,
+                114,
+                115,
+                116
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769_actions_merged.json b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..8bd5e5b1d6bfccdbde88151a1c6662633ee27220
--- /dev/null
+++ b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769_actions_merged.json
@@ -0,0 +1,674 @@
+{
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+                4
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diff --git a/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769_summary_merged.json b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..1bb3cafd78bb81b1c3dd8773d7bfd3cbb7d174a2
--- /dev/null
+++ b/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769/session_a5bf18b5-15d4-4843-8269-3f31154e3736_89607_89769_summary_merged.json
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+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                88,
+                89,
+                90,
+                91,
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                93,
+                94,
+                95,
+                96,
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                98,
+                99,
+                100,
+                101,
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106,
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111,
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642_actions_merged.json b/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d68a70f6d25f14f06a04ec6c2d2a7624943ff3bb
--- /dev/null
+++ b/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642_actions_merged.json
@@ -0,0 +1,696 @@
+{
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+            "key_1": 0,
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -2.150067483983591e-16,
+            "yaw_delta": 0.3870020396486211,
+            "pitch_delta": 1.6341748185372476,
+            "move_fwd": 0.017701811883417823,
+            "move_right": -0.009567251505117674,
+            "move_up": 0.001782063548201607,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "yaw": 0.3870020396486211,
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+            "yaw_delta": 0.46908049421423925,
+            "pitch_delta": 2.125418724101535,
+            "move_fwd": 0.009372464428525249,
+            "move_right": -0.008565316864376026,
+            "move_up": 0.0011675236160890794,
+            "merge_n": 5,
+            "merge_frames": [
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+                6,
+                7,
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+            "is_high_after_merge": true
+        },
+        "2": {
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                115,
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+        },
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+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642_summary_merged.json b/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..a86c2f933441aeb3180bb82cf68c0709fb4edfeb
--- /dev/null
+++ b/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642/session_a65500f7-956f-486d-872a-61742acb90d8_101480_101642_summary_merged.json
@@ -0,0 +1,329 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 26,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
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+        },
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
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+        },
+        {
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+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                31,
+                32,
+                33,
+                34
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+            "is_high_after_merge": true
+        },
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+            "merge_frames": [
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+                36,
+                37,
+                38,
+                39
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+        {
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+            "merge_frames": [
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+                41,
+                42,
+                43,
+                44
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+                48,
+                49
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+                52,
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+                54
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+            "is_high_after_merge": true
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+                56,
+                57,
+                58,
+                59
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+            "merge_frames": [
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+                64
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+            "is_high_after_merge": false
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+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 2,
+            "merge_frames": [
+                90,
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                92,
+                93,
+                94,
+                95,
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                97,
+                98,
+                99,
+                100,
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                102,
+                103,
+                104,
+                105,
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 1,
+            "merge_frames": [
+                112
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454_actions_merged.json b/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2c6147ce833bae90426819062866376fdeb417e6
--- /dev/null
+++ b/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454_actions_merged.json
@@ -0,0 +1,894 @@
+{
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+                3,
+                4
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+            "is_high_after_merge": true
+        },
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diff --git a/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454_summary_merged.json b/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..cc27ec95b2ffcf67490cfdfb417deb6eded5f713
--- /dev/null
+++ b/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454/session_a65500f7-956f-486d-872a-61742acb90d8_13292_13454_summary_merged.json
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+                60,
+                61,
+                62,
+                63
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 1,
+            "merge_frames": [
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 4,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 1,
+            "merge_frames": [
+                70
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                71
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                72,
+                73,
+                74,
+                75,
+                76
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 2,
+            "merge_frames": [
+                77,
+                78
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                79,
+                80,
+                81,
+                82,
+                83
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 1,
+            "merge_frames": [
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 1,
+            "merge_frames": [
+                85
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 4,
+            "merge_frames": [
+                87,
+                88,
+                89,
+                90
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                91
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 5,
+            "merge_frames": [
+                94,
+                95,
+                96,
+                97,
+                98
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 5,
+            "merge_frames": [
+                99,
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399_actions_merged.json b/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..1c5f1e1775c40b8eb77fdb763505d9af7e29d68f
--- /dev/null
+++ b/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399_actions_merged.json
@@ -0,0 +1,1290 @@
+{
+    "actions": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -1.5902773407317584e-15,
+            "yaw_delta": 3.375055113306672,
+            "pitch_delta": -0.4543518428430357,
+            "move_fwd": -0.01729167138749344,
+            "move_right": -0.038506164424661045,
+            "move_up": 0.011962016237503304,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
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+            "l_click": 0,
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+            "yaw": 3.375055113306672,
+            "pitch": -0.45435184284303726,
+            "yaw_delta": 2.458290627658755,
+            "pitch_delta": 1.836121762571608,
+            "move_fwd": -0.023452947748493134,
+            "move_right": -0.042897985279698056,
+            "move_up": 0.0007321095828743823,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        "2": {
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+            "move_up": -0.0028094526663910322,
+            "merge_n": 1,
+            "merge_frames": [
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+            "is_high_after_merge": false
+        },
+        "3": {
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+            "move_right": 0.03057583259700421,
+            "move_up": -0.023088778800231764,
+            "merge_n": 1,
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+            "yaw_delta": -2.470848882684294,
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+            "move_fwd": 0.016904296977812632,
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+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399_summary_merged.json b/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..88355aff74b85ae597fb1ddc3cbb1dd001dd1500
--- /dev/null
+++ b/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399/session_a65500f7-956f-486d-872a-61742acb90d8_76237_76399_summary_merged.json
@@ -0,0 +1,492 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 53,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
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+        },
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
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+        },
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+            "is_high_after_merge": true
+        },
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+            "merge_frames": [
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+            "is_high_after_merge": false
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+        },
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+            "is_high_after_merge": false
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+        {
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+            "is_high_after_merge": true
+        },
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+            "merge_n": 1,
+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                95
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                96
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
+                98,
+                99,
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                101
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 1,
+            "merge_frames": [
+                102
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 4,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 2,
+            "merge_frames": [
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                114
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246_actions_merged.json b/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..35b79e79dd440e65d0a0c9c38b805a0c855a0fd8
--- /dev/null
+++ b/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+}
\ No newline at end of file
diff --git a/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246_summary_merged.json b/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..02043e1135b170fd90b5438b493c8869ed199f17
--- /dev/null
+++ b/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246/session_b1b01372-64c3-4a6a-93fc-a86409f518ab_23109_23246_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+                0,
+                1,
+                2,
+                3,
+                4
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+                5,
+                6,
+                7,
+                8,
+                9
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+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
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+            "is_high_after_merge": false
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+        {
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+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
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+            "is_high_after_merge": true
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+                21,
+                22,
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+                26,
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": false
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+        {
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+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": true
+        },
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+        {
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+            "merge_n": 5,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                101,
+                102,
+                103,
+                104
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
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+            "is_high_after_merge": false
+        },
+        {
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+        {
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+            "merge_frames": [
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+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_b25fa519-f5d9-4355-a8c1-d496c67e33df_33436_33562/session_b25fa519-f5d9-4355-a8c1-d496c67e33df_33436_33562_summary_merged.json b/session_b25fa519-f5d9-4355-a8c1-d496c67e33df_33436_33562/session_b25fa519-f5d9-4355-a8c1-d496c67e33df_33436_33562_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..97aa3e043abc81c444f59526aafa087febd76d17
--- /dev/null
+++ b/session_b25fa519-f5d9-4355-a8c1-d496c67e33df_33436_33562/session_b25fa519-f5d9-4355-a8c1-d496c67e33df_33436_33562_summary_merged.json
@@ -0,0 +1,451 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 70,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 3,
+            "merge_frames": [
+                0,
+                1,
+                2
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 1,
+            "merge_frames": [
+                3
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 1,
+            "merge_frames": [
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 1,
+            "merge_frames": [
+                5
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 1,
+            "merge_frames": [
+                6
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 1,
+            "merge_frames": [
+                7
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 1,
+            "merge_frames": [
+                8
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 1,
+            "merge_frames": [
+                9
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 1,
+            "merge_frames": [
+                10
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 1,
+            "merge_frames": [
+                11
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 1,
+            "merge_frames": [
+                12
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 1,
+            "merge_frames": [
+                13
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 1,
+            "merge_frames": [
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 1,
+            "merge_frames": [
+                15
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 1,
+            "merge_frames": [
+                16
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                17
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                18
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 1,
+            "merge_frames": [
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                20
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                21
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 1,
+            "merge_frames": [
+                22
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                23,
+                24,
+                25,
+                26,
+                27
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                28,
+                29,
+                30,
+                31,
+                32
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 3,
+            "merge_frames": [
+                33,
+                34,
+                35
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                36,
+                37,
+                38,
+                39,
+                40
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 1,
+            "merge_frames": [
+                41
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                42
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 1,
+            "merge_frames": [
+                43
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 1,
+            "merge_frames": [
+                45
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 1,
+            "merge_frames": [
+                46
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 1,
+            "merge_frames": [
+                47
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 1,
+            "merge_frames": [
+                48
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 1,
+            "merge_frames": [
+                49
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 1,
+            "merge_frames": [
+                50
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 1,
+            "merge_frames": [
+                51
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                52
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 1,
+            "merge_frames": [
+                53
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 5,
+            "merge_frames": [
+                54,
+                55,
+                56,
+                57,
+                58
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 1,
+            "merge_frames": [
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                65
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                66
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                67
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                68
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 1,
+            "merge_frames": [
+                69
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                70
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                71
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 1,
+            "merge_frames": [
+                72
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                73
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_b391c221-f390-40e2-a210-a22616adb272_65261_65423/session_b391c221-f390-40e2-a210-a22616adb272_65261_65423_actions_merged.json b/session_b391c221-f390-40e2-a210-a22616adb272_65261_65423/session_b391c221-f390-40e2-a210-a22616adb272_65261_65423_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..9b2527bd09ae207132d0997eba1a49aabcc31934
--- /dev/null
+++ b/session_b391c221-f390-40e2-a210-a22616adb272_65261_65423/session_b391c221-f390-40e2-a210-a22616adb272_65261_65423_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "pitch": -1.3071665161388754e-17,
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+            "move_up": 0.0003577322728580732,
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+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
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+            "move_right": 0.004596861644519168,
+            "move_up": -0.006117925336678381,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        "2": {
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diff --git a/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613_actions_merged.json b/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..5c90f5c4fbbe66927b85ecf8eb9bddee36cf5674
--- /dev/null
+++ b/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613_actions_merged.json
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diff --git a/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613_summary_merged.json b/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..d9c0f7b940cb5a3a516163ba031ca910df0bf615
--- /dev/null
+++ b/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613/session_b3bc7cb1-88b2-41e1-86cf-6ecdb8e0dbca_35459_35613_summary_merged.json
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+                73,
+                74,
+                75,
+                76
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 5,
+            "merge_frames": [
+                77,
+                78,
+                79,
+                80,
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 5,
+            "merge_frames": [
+                82,
+                83,
+                84,
+                85,
+                86
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786_actions_merged.json b/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..7ba6cc289606dda2190cd220d79ae1d798e64800
--- /dev/null
+++ b/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786_actions_merged.json
@@ -0,0 +1,652 @@
+{
+    "actions": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": -4.060960087157453e-16,
+            "yaw_delta": 0.6729955452213972,
+            "pitch_delta": 0.2662344301685044,
+            "move_fwd": -0.006692503667465957,
+            "move_right": 0.015608702379477393,
+            "move_up": 0.0180887647107102,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "ad": 0,
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+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.6729955452213972,
+            "pitch": 0.266234430168504,
+            "yaw_delta": 0.9343457756253315,
+            "pitch_delta": 0.5056716304289838,
+            "move_fwd": -0.008303717134556621,
+            "move_right": 0.036239557378918145,
+            "move_up": 0.025266813545650718,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        "2": {
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+            "r_click": 0,
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+            "merge_n": 5,
+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
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+            "is_high_after_merge": true
+        },
+        "3": {
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+            "is_high_after_merge": true
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+            "move_up": 0.0025053373143576058,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
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+            "is_high_after_merge": false
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+        "5": {
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+                27,
+                28,
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786_summary_merged.json b/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..eee8e5126815ae8b7edd49d0c4a4a88c181f47d9
--- /dev/null
+++ b/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786/session_b818d104-1dcd-4b1f-ae38-2166f0347514_1624_1786_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840_actions_merged.json b/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..0d560d4a0093f34394b4c18fa1d082d7ad56833b
--- /dev/null
+++ b/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840_actions_merged.json
@@ -0,0 +1,652 @@
+{
+    "actions": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
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+            "pitch": 9.306715482144658e-17,
+            "yaw_delta": -0.10844685059865355,
+            "pitch_delta": -0.2846512673929046,
+            "move_fwd": -0.004033569087136283,
+            "move_right": -0.006589517438752235,
+            "move_up": -0.0004461598028504453,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "r_click": 0,
+            "yaw": -0.10844685059865355,
+            "pitch": -0.2846512673929045,
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+            "move_right": -0.0016464076328723287,
+            "move_up": -0.0012989680326766192,
+            "merge_n": 5,
+            "merge_frames": [
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+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
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+                22,
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+                118,
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+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840_summary_merged.json b/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..60ad7b55364b5385d4b219f15140cf49cb92d907
--- /dev/null
+++ b/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840/session_b99c164c-dae8-4009-bb1f-56f550aa4fd5_40678_40840_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
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+                6,
+                7,
+                8,
+                9
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+        {
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+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
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+            "is_high_after_merge": true
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+            "is_high_after_merge": false
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+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159_actions_merged.json b/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..6f4d24699ab3bb2ce26cab3a71d6afb2d174fce8
--- /dev/null
+++ b/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
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+            "merge_frames": [
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+}
\ No newline at end of file
diff --git a/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159_summary_merged.json b/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ba97fb28f56ee926d06d94c5cd8c380a8e2f6ad5
--- /dev/null
+++ b/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159/session_c091c167-003d-46ac-bf3a-265e88bbeec0_84022_84159_summary_merged.json
@@ -0,0 +1,315 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
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+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 24,
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_frames": [
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+            "is_high_after_merge": false
+        },
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+            "merge_n": 5,
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+                97,
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
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+                101,
+                102,
+                103,
+                104
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+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                113,
+                114
+            ],
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+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291_actions_merged.json b/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..ad0252c8eb8a479469d9e8cddcaa0a029b81c6ed
--- /dev/null
+++ b/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291_actions_merged.json
@@ -0,0 +1,1686 @@
+{
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
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diff --git a/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291_summary_merged.json b/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..71c0cb57780a83ae9b7eda3ac1f2e279adec5cbe
--- /dev/null
+++ b/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291/session_c0b1b969-46a3-4cb0-b2c9-e7a6928e649e_14143_14291_summary_merged.json
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+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                73
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287_actions_merged.json b/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..323b069581acfcc4d6a6e472bcf6b27b6c60712c
--- /dev/null
+++ b/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287_actions_merged.json
@@ -0,0 +1,718 @@
+{
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+            "key_1": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 7.5941186106194e-19,
+            "yaw_delta": -0.3542176335733416,
+            "pitch_delta": 0.09070455152257936,
+            "move_fwd": -0.0001698382664954547,
+            "move_right": -0.0015812980094544874,
+            "move_up": -0.0006223956001875998,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "r_click": 0,
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+            "move_fwd": -0.00011360750823545204,
+            "move_right": -0.001184787042848664,
+            "move_up": 1.389653212185735e-05,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        "2": {
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+                13,
+                14
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+            "is_high_after_merge": false
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+                23,
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+            "is_high_after_merge": false
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+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": false
+        },
+        "25": {
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+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": false
+        },
+        "26": {
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+            "ad": 0,
+            "scs": 0,
+            "key_1": 0,
+            "key_2": 0,
+            "key_3": 0,
+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 7.507306608701356,
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+            "pitch_delta": 0.0,
+            "move_fwd": 0.0,
+            "move_right": 0.0,
+            "move_up": 0.0,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287_summary_merged.json b/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..3bc49708bbb772db4ec0ad25b668f45006d1b486
--- /dev/null
+++ b/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287/session_c4f06549-15b5-49b8-b2d7-bf2a1c26edaa_11125_11287_summary_merged.json
@@ -0,0 +1,336 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 27,
+    "output_items_preview": [
+        {
+            "out_idx": 0,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 1,
+            "merge_n": 5,
+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 4,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                34,
+                35,
+                36,
+                37,
+                38
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                39,
+                40,
+                41,
+                42,
+                43
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                44,
+                45,
+                46,
+                47,
+                48
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                49,
+                50,
+                51,
+                52,
+                53
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                54,
+                55,
+                56,
+                57,
+                58
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                59,
+                60,
+                61,
+                62,
+                63
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                64,
+                65,
+                66,
+                67,
+                68
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 3,
+            "merge_frames": [
+                69,
+                70,
+                71
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                72,
+                73,
+                74,
+                75,
+                76
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                77,
+                78,
+                79,
+                80,
+                81
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                82,
+                83,
+                84,
+                85,
+                86
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                87
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                88
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                89,
+                90,
+                91,
+                92,
+                93
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                94,
+                95,
+                96,
+                97,
+                98
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                99,
+                100,
+                101,
+                102,
+                103
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                104,
+                105,
+                106,
+                107,
+                108
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                109,
+                110,
+                111,
+                112,
+                113
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                114,
+                115,
+                116,
+                117,
+                118
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_c645ddf0-1efc-4c0a-bf58-889ea519b254_115993_116155/session_c645ddf0-1efc-4c0a-bf58-889ea519b254_115993_116155_actions_merged.json b/session_c645ddf0-1efc-4c0a-bf58-889ea519b254_115993_116155/session_c645ddf0-1efc-4c0a-bf58-889ea519b254_115993_116155_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..33ea5887fb16c1e3b76b7f038fa6b16987e76036
--- /dev/null
+++ b/session_c645ddf0-1efc-4c0a-bf58-889ea519b254_115993_116155/session_c645ddf0-1efc-4c0a-bf58-889ea519b254_115993_116155_actions_merged.json
@@ -0,0 +1,1202 @@
+{
+    "actions": {
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+            "scs": 0,
+            "key_1": 0,
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+            "key_r": 0,
+            "l_click": 0,
+            "r_click": 0,
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+            "pitch": 3.1231994002227544e-16,
+            "yaw_delta": -0.11914520716487687,
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+            "move_up": 0.043149298091332056,
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+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
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+                5,
+                6,
+                7,
+                8,
+                9
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+        },
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+        "3": {
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diff --git a/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551_actions_merged.json b/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2258974de21085537ef178be75f9246bb6b427eb
--- /dev/null
+++ b/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551_actions_merged.json
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+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551_summary_merged.json b/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..2696950ba72eba26c4ab11632374a7839cd1c7dc
--- /dev/null
+++ b/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551/session_c7d31de3-e2fc-4542-a318-7719a6922bb4_60389_60551_summary_merged.json
@@ -0,0 +1,345 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 115,
+    "num_output_items": 29,
+    "output_items_preview": [
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+            "merge_n": 2,
+            "merge_frames": [
+                0,
+                1
+            ],
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+                11,
+                12,
+                13,
+                14
+            ],
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+        },
+        {
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+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                22,
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+                24
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
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+                65
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                67,
+                68,
+                69,
+                70
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                71,
+                72,
+                73,
+                74,
+                75
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                76,
+                77,
+                78,
+                79,
+                80
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                81,
+                82,
+                83,
+                84,
+                85
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                86,
+                87,
+                88,
+                89,
+                90
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                91,
+                92,
+                93,
+                94,
+                95
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                96,
+                97,
+                98,
+                99,
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                101,
+                102,
+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 4,
+            "merge_frames": [
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260_actions_merged.json b/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..938b5874de450e86f595d03dbbde576c08b74435
--- /dev/null
+++ b/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260_actions_merged.json
@@ -0,0 +1,740 @@
+{
+    "actions": {
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+                4
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diff --git a/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260_summary_merged.json b/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..9842e579c34a9f8cbe57474eac1ad3ddc6b45f2b
--- /dev/null
+++ b/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260/session_dafc3206-3b70-4f43-b386-e0d01a3516a7_60098_60260_summary_merged.json
@@ -0,0 +1,343 @@
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                36,
+                37,
+                38,
+                39,
+                40
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                41,
+                42,
+                43,
+                44,
+                45
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                46,
+                47,
+                48,
+                49,
+                50
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 2,
+            "merge_frames": [
+                51,
+                52
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                53,
+                54,
+                55,
+                56,
+                57
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                58,
+                59,
+                60,
+                61,
+                62
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                63,
+                64,
+                65,
+                66,
+                67
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                68,
+                69,
+                70,
+                71,
+                72
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                73,
+                74,
+                75,
+                76,
+                77
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 2,
+            "merge_frames": [
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 3,
+            "merge_frames": [
+                90,
+                91,
+                92
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                93,
+                94,
+                95,
+                96,
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 1,
+            "merge_frames": [
+                98
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 2,
+            "merge_frames": [
+                99,
+                100
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 5,
+            "merge_frames": [
+                101,
+                102,
+                103,
+                104,
+                105
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 5,
+            "merge_frames": [
+                106,
+                107,
+                108,
+                109,
+                110
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 5,
+            "merge_frames": [
+                111,
+                112,
+                113,
+                114,
+                115
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 4,
+            "merge_frames": [
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841_actions_merged.json b/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..48f05bcd3ad8c2e01ab2cafa2a5fc782937d429e
--- /dev/null
+++ b/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841_actions_merged.json
@@ -0,0 +1,894 @@
+{
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+            "pitch": 1.5390975724171907e-16,
+            "yaw_delta": -2.7607062332540124,
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+            "move_up": 0.0009366424350472559,
+            "merge_n": 5,
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+                0,
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+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "move_up": -0.001350398298047242,
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+}
\ No newline at end of file
diff --git a/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841_summary_merged.json b/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..1431658137a67aee04daafc2c41927aabefd3026
--- /dev/null
+++ b/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841/session_df01a6a0-2404-4a91-bd95-1ca04a4bcb05_3679_3841_summary_merged.json
@@ -0,0 +1,392 @@
+{
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+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
+    },
+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 35,
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+            "merge_frames": [
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+            "is_high_after_merge": false
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+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_e5fea731-7b32-4857-a86b-587eda0ff334_126192_126354/session_e5fea731-7b32-4857-a86b-587eda0ff334_126192_126354_actions_merged.json b/session_e5fea731-7b32-4857-a86b-587eda0ff334_126192_126354/session_e5fea731-7b32-4857-a86b-587eda0ff334_126192_126354_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..c85902d71bcef072220d045a2a5520e985940c56
--- /dev/null
+++ b/session_e5fea731-7b32-4857-a86b-587eda0ff334_126192_126354/session_e5fea731-7b32-4857-a86b-587eda0ff334_126192_126354_actions_merged.json
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diff --git a/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916_actions_merged.json b/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..e77e88c881b00471e28a2308bf3d369f494095fa
--- /dev/null
+++ b/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916_actions_merged.json
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+                116,
+                117,
+                118,
+                119
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+            "is_high_after_merge": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916_summary_merged.json b/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..266b6cb7cde5fcaa4fc9e66fb8c2bf27b960c529
--- /dev/null
+++ b/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916/session_e6884440-93b1-4202-8668-460ff075c63f_1754_1916_summary_merged.json
@@ -0,0 +1,315 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 24,
+    "output_items_preview": [
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+            "merge_n": 5,
+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
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+            "merge_frames": [
+                5,
+                6,
+                7,
+                8,
+                9
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_frames": [
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+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
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+            "merge_frames": [
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+                26,
+                27,
+                28,
+                29
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+            "is_high_after_merge": false
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+            "merge_frames": [
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+                71,
+                72,
+                73,
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+            "is_high_after_merge": false
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+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743_actions_merged.json b/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..b99cce755df848e2ef81c106654c05c35e320089
--- /dev/null
+++ b/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743_actions_merged.json
@@ -0,0 +1,1532 @@
+{
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+                3
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diff --git a/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743_summary_merged.json b/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..37ffbf392d0a9f710296faf75162fe2ea8e80c8f
--- /dev/null
+++ b/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743/session_e826857f-8b94-4168-bc5a-7aaff9cdc7c0_7581_7743_summary_merged.json
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+                13
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 1,
+            "merge_frames": [
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 1,
+            "merge_frames": [
+                15
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 1,
+            "merge_frames": [
+                16
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 1,
+            "merge_frames": [
+                17
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 2,
+            "merge_frames": [
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 1,
+            "merge_frames": [
+                20
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 1,
+            "merge_frames": [
+                21
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 1,
+            "merge_frames": [
+                22
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 1,
+            "merge_frames": [
+                23
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 1,
+            "merge_frames": [
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 1,
+            "merge_frames": [
+                25
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 1,
+            "merge_frames": [
+                26
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 1,
+            "merge_frames": [
+                27
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 1,
+            "merge_frames": [
+                28
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 1,
+            "merge_frames": [
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 1,
+            "merge_frames": [
+                30
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 1,
+            "merge_frames": [
+                31
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 1,
+            "merge_frames": [
+                32
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 2,
+            "merge_frames": [
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 1,
+            "merge_frames": [
+                35
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 25,
+            "merge_n": 1,
+            "merge_frames": [
+                36
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 26,
+            "merge_n": 1,
+            "merge_frames": [
+                37
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 1,
+            "merge_frames": [
+                38
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 1,
+            "merge_frames": [
+                39
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 29,
+            "merge_n": 1,
+            "merge_frames": [
+                40
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 1,
+            "merge_frames": [
+                41
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 31,
+            "merge_n": 1,
+            "merge_frames": [
+                42
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 32,
+            "merge_n": 1,
+            "merge_frames": [
+                43
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 33,
+            "merge_n": 1,
+            "merge_frames": [
+                44
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 34,
+            "merge_n": 1,
+            "merge_frames": [
+                45
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 35,
+            "merge_n": 5,
+            "merge_frames": [
+                46,
+                47,
+                48,
+                49,
+                50
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 36,
+            "merge_n": 1,
+            "merge_frames": [
+                51
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 37,
+            "merge_n": 1,
+            "merge_frames": [
+                52
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 38,
+            "merge_n": 1,
+            "merge_frames": [
+                53
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 39,
+            "merge_n": 1,
+            "merge_frames": [
+                54
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 40,
+            "merge_n": 1,
+            "merge_frames": [
+                55
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 41,
+            "merge_n": 1,
+            "merge_frames": [
+                56
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 42,
+            "merge_n": 1,
+            "merge_frames": [
+                57
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 43,
+            "merge_n": 1,
+            "merge_frames": [
+                58
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 44,
+            "merge_n": 1,
+            "merge_frames": [
+                59
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 45,
+            "merge_n": 1,
+            "merge_frames": [
+                60
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 46,
+            "merge_n": 1,
+            "merge_frames": [
+                61
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 47,
+            "merge_n": 1,
+            "merge_frames": [
+                62
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 48,
+            "merge_n": 1,
+            "merge_frames": [
+                63
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 49,
+            "merge_n": 1,
+            "merge_frames": [
+                64
+            ],
+            "is_high_after_merge": true
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493_actions_merged.json b/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..63a5e9ec20f1a82ddee1cbf88bfecb2e0b85a52d
--- /dev/null
+++ b/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 8.071471529105548e-16,
+            "yaw_delta": -0.13825869107884614,
+            "pitch_delta": 0.4943082513115172,
+            "move_fwd": 0.0026026687623922906,
+            "move_right": -0.00471317987792396,
+            "move_up": 0.0024594415960435545,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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+            "move_fwd": 0.0032576198393404724,
+            "move_right": -0.005936562768050697,
+            "move_up": 0.00306202325582061,
+            "merge_n": 5,
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+        "2": {
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+            "is_high_after_merge": false
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+}
\ No newline at end of file
diff --git a/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493_summary_merged.json b/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..b44aa75faf4e1f0941cd999737b27d70e63aed87
--- /dev/null
+++ b/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493/session_e83beb3b-542e-4f19-b845-a0dd04ffa06f_22338_22493_summary_merged.json
@@ -0,0 +1,315 @@
+{
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+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
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+    "flip_pitch": true,
+    "thresholds": {
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+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
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+    "num_output_items": 24,
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+                17,
+                18,
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+            "is_high_after_merge": false
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+            "is_high_after_merge": false
+        },
+        {
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+                82,
+                83,
+                84
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+                92,
+                93,
+                94
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+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306_actions_merged.json b/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..886cf29bea10aabd23219fd7eba5c017c5c2c0b0
--- /dev/null
+++ b/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306_actions_merged.json
@@ -0,0 +1,674 @@
+{
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diff --git a/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306_summary_merged.json b/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306/session_ebae32c1-6ad1-4b96-851c-166e1784d50a_10144_10306_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..56ad64c481467c10c3dc5fce84f4c14e96de1f84
--- /dev/null
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+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 24,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906_actions_merged.json b/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..732ce9756242212669bad4a9c0d42095ed72281d
--- /dev/null
+++ b/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906_actions_merged.json
@@ -0,0 +1,806 @@
+{
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+            "l_click": 0,
+            "r_click": 0,
+            "yaw": 0.0,
+            "pitch": 2.2388798292098927e-16,
+            "yaw_delta": -1.2406710756663415,
+            "pitch_delta": 1.205219507853717,
+            "move_fwd": 0.0036167247403877155,
+            "move_right": -0.004231335782502563,
+            "move_up": 0.0010196068270867577,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": true
+        },
+        "1": {
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+            "yaw_delta": -1.1749971459878452,
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+            "move_fwd": 0.002572018120787167,
+            "move_right": -0.002674175716198178,
+            "move_up": -0.0029138380078355688,
+            "merge_n": 5,
+            "merge_frames": [
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+                7,
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+                9
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+            "is_high_after_merge": true
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+                119
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+        }
+    }
+}
\ No newline at end of file
diff --git a/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906_summary_merged.json b/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..9f7f0fdd6779daa6119ee13f7ecee213299d301c
--- /dev/null
+++ b/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906/session_f0a5b497-94d3-47ec-8bd6-427d91d15adf_26786_26906_summary_merged.json
@@ -0,0 +1,364 @@
+{
+    "pose_file_used_priority": [
+        "fused_pose.npy",
+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
+        "yaw_thresh": 1.1,
+        "pitch_thresh": 0.55,
+        "move_thresh": 0.01,
+        "max_merge_n": 5
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+    "delta_output_divisor": 1.0,
+    "num_original_frames": 120,
+    "num_output_items": 31,
+    "output_items_preview": [
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+            "merge_frames": [
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+                1,
+                2,
+                3,
+                4
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+                6,
+                7,
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+                27,
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+            "is_high_after_merge": true
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+            "merge_frames": [
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+                80,
+                81,
+                82
+            ],
+            "is_high_after_merge": true
+        },
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+            "merge_n": 5,
+            "merge_frames": [
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+                84,
+                85,
+                86,
+                87
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                88,
+                89,
+                90,
+                91,
+                92
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                93,
+                94,
+                95,
+                96,
+                97
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                99,
+                100,
+                101,
+                102
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 27,
+            "merge_n": 5,
+            "merge_frames": [
+                103,
+                104,
+                105,
+                106,
+                107
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 28,
+            "merge_n": 5,
+            "merge_frames": [
+                108,
+                109,
+                110,
+                111,
+                112
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                113,
+                114,
+                115,
+                116,
+                117
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+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 30,
+            "merge_n": 2,
+            "merge_frames": [
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339_actions_merged.json b/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..f5915f07b563eabf6232dd87840004d66bf97840
--- /dev/null
+++ b/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339_actions_merged.json
@@ -0,0 +1,674 @@
+{
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+}
\ No newline at end of file
diff --git a/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339_summary_merged.json b/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4efca14ab48befffb7547b6214f3a41e1ee0832d
--- /dev/null
+++ b/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339/session_f4802d42-db9e-4770-a151-f2f42a602231_109177_109339_summary_merged.json
@@ -0,0 +1,322 @@
+{
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+        "sfm_pose.npy",
+        "imu_pose.npy"
+    ],
+    "pose_is_camera_to_world": false,
+    "flip_pitch": true,
+    "thresholds": {
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+    "num_output_items": 25,
+    "output_items_preview": [
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+            "merge_frames": [
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+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 2,
+            "merge_frames": [
+                105,
+                106
+            ],
+            "is_high_after_merge": false
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
+                107,
+                108,
+                109,
+                110,
+                111
+            ],
+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 5,
+            "merge_frames": [
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+                114,
+                115,
+                116
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+            "is_high_after_merge": true
+        },
+        {
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+            "merge_n": 3,
+            "merge_frames": [
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753_actions_merged.json b/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..197b7646329bc46bf81441c48ff0d7d1a16e4ac7
--- /dev/null
+++ b/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753_actions_merged.json
@@ -0,0 +1,652 @@
+{
+    "actions": {
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diff --git a/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753_summary_merged.json b/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..687013cf3a848453a3decc047d15e7cd16044876
--- /dev/null
+++ b/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753/session_f6eb8e9b-a925-4112-9eec-32393192e435_81591_81753_summary_merged.json
@@ -0,0 +1,315 @@
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+            "out_idx": 2,
+            "merge_n": 5,
+            "merge_frames": [
+                10,
+                11,
+                12,
+                13,
+                14
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 3,
+            "merge_n": 5,
+            "merge_frames": [
+                15,
+                16,
+                17,
+                18,
+                19
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 4,
+            "merge_n": 5,
+            "merge_frames": [
+                20,
+                21,
+                22,
+                23,
+                24
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 5,
+            "merge_n": 5,
+            "merge_frames": [
+                25,
+                26,
+                27,
+                28,
+                29
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 6,
+            "merge_n": 5,
+            "merge_frames": [
+                30,
+                31,
+                32,
+                33,
+                34
+            ],
+            "is_high_after_merge": true
+        },
+        {
+            "out_idx": 7,
+            "merge_n": 5,
+            "merge_frames": [
+                35,
+                36,
+                37,
+                38,
+                39
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 8,
+            "merge_n": 5,
+            "merge_frames": [
+                40,
+                41,
+                42,
+                43,
+                44
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 9,
+            "merge_n": 5,
+            "merge_frames": [
+                45,
+                46,
+                47,
+                48,
+                49
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 10,
+            "merge_n": 5,
+            "merge_frames": [
+                50,
+                51,
+                52,
+                53,
+                54
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 11,
+            "merge_n": 5,
+            "merge_frames": [
+                55,
+                56,
+                57,
+                58,
+                59
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 12,
+            "merge_n": 5,
+            "merge_frames": [
+                60,
+                61,
+                62,
+                63,
+                64
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 13,
+            "merge_n": 5,
+            "merge_frames": [
+                65,
+                66,
+                67,
+                68,
+                69
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 14,
+            "merge_n": 5,
+            "merge_frames": [
+                70,
+                71,
+                72,
+                73,
+                74
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 15,
+            "merge_n": 5,
+            "merge_frames": [
+                75,
+                76,
+                77,
+                78,
+                79
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 16,
+            "merge_n": 5,
+            "merge_frames": [
+                80,
+                81,
+                82,
+                83,
+                84
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 17,
+            "merge_n": 5,
+            "merge_frames": [
+                85,
+                86,
+                87,
+                88,
+                89
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 18,
+            "merge_n": 5,
+            "merge_frames": [
+                90,
+                91,
+                92,
+                93,
+                94
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 19,
+            "merge_n": 5,
+            "merge_frames": [
+                95,
+                96,
+                97,
+                98,
+                99
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 20,
+            "merge_n": 5,
+            "merge_frames": [
+                100,
+                101,
+                102,
+                103,
+                104
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 21,
+            "merge_n": 5,
+            "merge_frames": [
+                105,
+                106,
+                107,
+                108,
+                109
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 22,
+            "merge_n": 5,
+            "merge_frames": [
+                110,
+                111,
+                112,
+                113,
+                114
+            ],
+            "is_high_after_merge": false
+        },
+        {
+            "out_idx": 23,
+            "merge_n": 5,
+            "merge_frames": [
+                115,
+                116,
+                117,
+                118,
+                119
+            ],
+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_f809c446-c3f0-4974-afed-270c12df12a4_126633_126764/session_f809c446-c3f0-4974-afed-270c12df12a4_126633_126764_actions_merged.json b/session_f809c446-c3f0-4974-afed-270c12df12a4_126633_126764/session_f809c446-c3f0-4974-afed-270c12df12a4_126633_126764_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..886343312ac2984c5f7f7e2ed2159275dd2e3e42
--- /dev/null
+++ b/session_f809c446-c3f0-4974-afed-270c12df12a4_126633_126764/session_f809c446-c3f0-4974-afed-270c12df12a4_126633_126764_actions_merged.json
@@ -0,0 +1,652 @@
+{
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+            "l_click": 0,
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+            "yaw": 0.0,
+            "pitch": 2.646921411351809e-16,
+            "yaw_delta": 0.041661786955160096,
+            "pitch_delta": 0.11088154615853951,
+            "move_fwd": -7.518949669502573e-05,
+            "move_right": -0.002033906633499189,
+            "move_up": 0.00013441454069229808,
+            "merge_n": 5,
+            "merge_frames": [
+                0,
+                1,
+                2,
+                3,
+                4
+            ],
+            "is_high_after_merge": false
+        },
+        "1": {
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diff --git a/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010_actions_merged.json b/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..83ffe9b8ac8c01f7c9959fb506fd2ef2cfe9e2d9
--- /dev/null
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\ No newline at end of file
diff --git a/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010_summary_merged.json b/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..694a45b0b0617bf68baa85235f40878325eec52e
--- /dev/null
+++ b/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010/session_f809c446-c3f0-4974-afed-270c12df12a4_91848_92010_summary_merged.json
@@ -0,0 +1,392 @@
+{
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+            "merge_frames": [
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+            "merge_n": 1,
+            "merge_frames": [
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+            "is_high_after_merge": false
+        }
+    ],
+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file
diff --git a/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155_actions_merged.json b/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155_actions_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..4443120d4dd165b8439983b3dff55e65a7374150
--- /dev/null
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diff --git a/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155_summary_merged.json b/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..525f5e1909eabc3ea272d72ead463f0f085fd7e5
--- /dev/null
+++ b/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155/session_fc18a064-b1d9-485d-8c19-a3151dcf5bc8_98993_99155_summary_merged.json
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+                118,
+                119
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+}
\ No newline at end of file
diff --git a/session_fdf36515-a08a-4575-9a79-65d0ec260cc7_19684_19846/session_fdf36515-a08a-4575-9a79-65d0ec260cc7_19684_19846_summary_merged.json b/session_fdf36515-a08a-4575-9a79-65d0ec260cc7_19684_19846/session_fdf36515-a08a-4575-9a79-65d0ec260cc7_19684_19846_summary_merged.json
new file mode 100644
index 0000000000000000000000000000000000000000..f2e339261458fbad463b3230f80a457cea83dae8
--- /dev/null
+++ b/session_fdf36515-a08a-4575-9a79-65d0ec260cc7_19684_19846/session_fdf36515-a08a-4575-9a79-65d0ec260cc7_19684_19846_summary_merged.json
@@ -0,0 +1,315 @@
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+                116,
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+    "notes": [
+        "Merged frames are STRICTLY CONTIGUOUS indices.",
+        "All original frames are kept exactly once.",
+        "Each output item length <= max_merge_n.",
+        "yaw_delta/pitch_delta/move_* are SUM of included frames' per-frame deltas.",
+        "ws/ad are inferred from SUM(move_fwd/move_right) with threshold scaled by merge_n."
+    ]
+}
\ No newline at end of file