a

core/detect/checkpoint/__init__.py

@@ -1,19 +1,31 @@
 """
-Checkpoint system — Timeline + Checkpoint tree.
+Checkpoint system — Timeline + Checkpoint tree + StageOutput.
 
     detect/checkpoint/
-        frames.py      — frame image S3 upload/download
-        storage.py     — Timeline + Checkpoint (Postgres + MinIO)
-        replay.py      — replay (TODO: migrate to new model)
+        frames.py        — per-timeline frame cache (local filesystem)
+        storage.py       — Timeline, Checkpoint, StageOutput persistence
+        replay.py        — replay from checkpoint (TODO: rework in 5d)
         runner_bridge.py — checkpoint hook for PipelineRunner
 """
 
 from .storage import (
     create_timeline,
-    get_timeline_frames,
-    get_timeline_frames_b64,
+    get_timeline,
+    update_timeline_status,
+    save_checkpoint,
+    get_checkpoints_for_job,
+    get_checkpoints_for_timeline,
     save_stage_output,
     load_stage_output,
+    load_stage_outputs_for_job,
+    load_stage_outputs_for_timeline,
 )
-from .frames import save_frames, load_frames
-from .runner_bridge import checkpoint_after_stage, reset_checkpoint_state, get_timeline_id
+from .frames import (
+    cache_exists,
+    cache_frames,
+    load_cached_frames,
+    load_cached_frames_b64,
+    clear_cache,
+    frames_to_b64,
+)
+from .runner_bridge import checkpoint_after_stage, reset_checkpoint_state, get_latest_checkpoint