Add benchmark split files

.gitattributes

@@ -58,3 +58,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+benchmark/train.csv filter=lfs diff=lfs merge=lfs -text

benchmark/split_config.json

@@ -0,0 +1,55 @@
+{
+  "benchmark_name": "shanse001_rebuilt_entity_split",
+  "num_selected_entities": 7,
+  "num_branches": 12,
+  "target_interval_minutes": 1,
+  "base_interval_minutes": 10,
+  "train_source": "combined",
+  "seed": 42,
+  "dropped_zero_signal_datasets": [],
+  "train": {
+    "entity_count": 5,
+    "entity_names": [
+      "shanse001_aug_chunk_01_1min",
+      "shanse001_aug_chunk_02_1min",
+      "shanse001_aug_chunk_06_1min",
+      "shanse001_aug_chunk_03_1min",
+      "shanse001_aug_chunk_05_1min"
+    ],
+    "combined_rows": 104835,
+    "base_rows": 34945,
+    "combined_hours": 1747.25,
+    "base_hours": 582.4166666666666,
+    "train_source": "combined"
+  },
+  "val": {
+    "entity_count": 1,
+    "entity_names": [
+      "shanse001_aug_chunk_04_1min"
+    ],
+    "combined_rows": 21273,
+    "base_rows": 7091,
+    "combined_hours": 354.55,
+    "base_hours": 118.18333333333334,
+    "train_source": "base"
+  },
+  "test": {
+    "entity_count": 1,
+    "entity_names": [
+      "shanse001_jul_chunk_01_1min"
+    ],
+    "combined_rows": 35973,
+    "base_rows": 11991,
+    "combined_hours": 599.55,
+    "base_hours": 199.85,
+    "train_source": "base"
+  },
+  "train_csv_path": "train.csv",
+  "val_csv_path": "validation.csv",
+  "test_csv_path": "test.csv",
+  "notes": [
+    "Entity-level split. The same entity never appears in more than one split.",
+    "Training entities may use combined synthetic CSVs; validation and test use base CSVs only.",
+    "All downstream methods should reuse this benchmark bundle unchanged."
+  ]
+}

benchmark/train.csv

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:53678158e7deb2caedf1d9e4b142b059ff4b46ff5361ae98594ec787b51550cd
+size 37384715