feat: add Qdrant _faces collection embedding push

- Add qdrant_faces.py utility module for _faces collection operations
- Modify face_processor.py to push embeddings to Qdrant (CoreML extraction re-enabled)
- Modify store_traced_faces.py to update trace_id in Qdrant after face tracking
- Collection schema: 512D vectors, Cosine distance, fixed name '_faces'
- Payload: file_uuid, frame, trace_id, bbox, confidence, identity_id/uuid, stranger_id
- Batch size: 100 (default), configurable via QDRANT_BATCH_SIZE env var
- Error handling: face_processor.py exits with error if Qdrant push fails

scripts/store_traced_faces.py

@@ -27,6 +27,7 @@ from datetime import datetime
 
 sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)), "utils"))
+from qdrant_faces import update_trace_ids
 
 # Config
 DB_URL = os.environ.get("DATABASE_URL", "postgresql://accusys@localhost:5432/momentry")
@@ -204,6 +205,25 @@ def store_traced_faces(file_uuid: str, traced_json_path: str, schema: str = SCHE
 
     conn.commit()
 
+    # Build trace_mapping for Qdrant update
+    trace_mapping = {}  # {frame: {bbox_key: trace_id}}
+    for frame_num_str, frame_data in sorted(frames.items(), key=lambda x: int(x[0])):
+        frame_num = int(frame_num_str)
+        trace_mapping[frame_num] = {}
+        for face in frame_data.get("faces", []):
+            trace_id = face.get("trace_id")
+            if trace_id is None:
+                continue
+            bbox_key = f"{face['x']}_{face['y']}_{face['width']}_{face['height']}"
+            trace_mapping[frame_num][bbox_key] = trace_id
+
+    # Update Qdrant _faces collection with trace_id
+    try:
+        qdrant_updated = update_trace_ids(file_uuid, trace_mapping)
+    except Exception as e:
+        print(f"[TRACE] Warning: Qdrant trace_id update failed: {e}")
+        qdrant_updated = 0
+
     # Log trace summary
     cur.execute(
         f"SELECT COUNT(DISTINCT trace_id) FROM {schema}.face_detections WHERE file_uuid = %s AND trace_id IS NOT NULL",
@@ -217,6 +237,8 @@ def store_traced_faces(file_uuid: str, traced_json_path: str, schema: str = SCHE
     print(
         f"[TRACE] Stored {total_stored} face detections, {db_trace_count} unique traces in DB"
     )
+    if qdrant_updated > 0:
+        print(f"[TRACE] Updated {qdrant_updated} Qdrant points with trace_id")
     return total_stored, db_trace_count