Fix qdrant_request() to properly handle empty dict {} as body.
Python's 'if body' evaluates to False for empty dict, causing EOF error.
Changed:
- data = json.dumps(body).encode() if body is not None else None
Also cleaned up count_seeds() to use consistent body passing.
- Add ensure_seeds_collection(): create _seeds collection (512D, Cosine)
- Add push_seed_embedding(): push identity seed with payload {identity_id, uuid, name, source, file_uuid, trace_id, tmdb_id}
- Add get_seeds(): get all seeds (optional source filter)
- Add search_seeds(): cosine search against seeds
- Add delete_seed(): delete seed by identity_id
- Add count_seeds(): count seeds (optional source filter)
- Add get_trace_representatives(): get 3 representatives per trace for multi-angle matching
- Add get_trace_centroid(): get centroid embedding for a trace
- Add update_identity_in_faces(): update identity_id/uuid for all face points with trace_id
Point ID strategy: identity_id directly as point_id for _seeds collection
All functions tested successfully
