Update progress at checkpoint-8

progress.json

@@ -0,0 +1,19 @@
+{
+  "sessions_completed": 1,
+  "total_steps_completed": 8,
+  "latest_checkpoint": "checkpoint-8",
+  "shard_size_examples": 70,
+  "total_examples": 61817,
+  "next_start_index": 70,
+  "history": [
+    {
+      "session": 1,
+      "checkpoint": "checkpoint-8",
+      "start_idx": 0,
+      "end_idx": 70,
+      "examples_trained": 70,
+      "steps_trained_in_session": 8,
+      "timestamp_utc": "2026-01-29T20:56:03.593311+00:00"
+    }
+  ]
+}