Update progress at checkpoint-2469

progress.json

@@ -1,10 +1,10 @@
 {
-  "sessions_completed": 12,
-  "total_steps_completed": 2344,
-  "latest_checkpoint": "checkpoint-2344",
+  "sessions_completed": 13,
+  "total_steps_completed": 2469,
+  "latest_checkpoint": "checkpoint-2469",
   "shard_size_examples": 70,
   "total_examples": 61817,
-  "next_start_index": 18770,
+  "next_start_index": 19770,
   "history": [
     {
       "session": 1,
@@ -113,6 +113,15 @@
       "examples_trained": 1000,
       "steps_trained_in_session": 125,
       "timestamp_utc": "2026-02-06T20:48:36.167842+00:00"
+    },
+    {
+      "session": 13,
+      "checkpoint": "checkpoint-2469",
+      "start_idx": 18770,
+      "end_idx": 19770,
+      "examples_trained": 1000,
+      "steps_trained_in_session": 125,
+      "timestamp_utc": "2026-02-06T21:27:50.889352+00:00"
     }
   ]
 }