phase 10

detect/checkpoint/__init__.py

@@ -0,0 +1,14 @@
+"""
+Stage checkpoint, replay, and retry.
+
+    detect/checkpoint/
+        frames.py      — frame image S3 upload/download
+        serializer.py  — state ↔ JSON conversion
+        storage.py     — checkpoint save/load/list (Postgres + S3)
+        replay.py      — replay_from, OverrideProfile
+        tasks.py       — retry_candidates Celery task
+"""
+
+from .storage import save_checkpoint, load_checkpoint, list_checkpoints
+from .frames import save_frames, load_frames
+from .replay import replay_from, OverrideProfile