feat: Phase 2.6 edges migration to Qdrant (TKG-only architecture)

Phase 2.6.1: co_occurrence_edges migration
- build_co_occurrence_edges_from_qdrant()
- Qdrant embeddings → frame grouping → YOLO objects
- Result: 6679 edges (vs 6701 PostgreSQL)

Phase 2.6.2: face_face_edges migration
- build_face_face_edges_from_qdrant()
- Qdrant embeddings → frame grouping → face pairs
- mutual_gaze detection preserved
- Result: 6 edges (exact match)

Phase 2.6.3: speaker_face_edges migration
- build_speaker_face_edges_from_qdrant()
- Qdrant embeddings → trace_id frame ranges
- SPEAKS_AS edge creation

Architecture:
- All edges use Qdrant payload (no face_detections queries)
- PostgreSQL fallback for empty Qdrant
- Estimated 3.6x performance improvement

Testing:
- Playground (3003): ✓ All Phase 2.6 logs verified
- Edge counts: ✓ Close match with PostgreSQL
- Fallback: ✓ Working

Docs:
- docs_v1.0/DESIGN/TKG_PHASE2_6_EDGES_MIGRATION.md
- docs_v1.0/M4_workspace/2026-06-21_phase2_6_test.md

v1.1/scripts/insert_chunks_v1.11.py

@@ -0,0 +1,48 @@
+#!/opt/homebrew/bin/python3.11
+"""Insert sentence chunks from transcribe.py output into dev.chunk table."""
+import json, sys
+import psycopg2
+
+DB = "dbname=momentry user=accusys"
+UUID = sys.argv[1] if len(sys.argv) > 1 else "23b1c872379d4ec06479e5ed39eef4c5"
+ASR_PATH = f"/Users/accusys/momentry/output_dev/{UUID}.asr.json"
+FPS = 23.976023976023978
+
+with open(ASR_PATH) as f:
+    asr = json.load(f)
+
+segments = asr.get("segments", [])
+print(f"Inserting {len(segments)} sentence chunks for {UUID}...")
+
+conn = psycopg2.connect(DB)
+cur = conn.cursor()
+
+inserted = 0
+for seg in segments:
+    chunk_id = seg["chunk_id"]
+    start_time = seg["start_time"]
+    end_time = seg["end_time"]
+    start_frame = int(start_time * FPS)
+    end_frame = int(end_time * FPS)
+    text = seg.get("text", "")
+    speaker_change = seg.get("speaker_change", False)
+
+    content = json.dumps({
+        "source": "transcribe",
+        "speaker_change": speaker_change,
+        "pass1_index": seg.get("pass1_index", 0),
+    })
+
+    cur.execute("""
+        INSERT INTO dev.chunk (file_uuid, chunk_id, chunk_type, start_time, end_time,
+            start_frame, end_frame, fps, text_content, content, created_at)
+        VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s::jsonb, NOW())
+        ON CONFLICT (file_uuid, chunk_id) DO NOTHING
+    """, (UUID, chunk_id, "sentence", start_time, end_time,
+          start_frame, end_frame, FPS, text, content))
+    inserted += 1
+
+conn.commit()
+cur.close()
+conn.close()
+print(f"Done: {inserted} chunks inserted")