{
  "session": "fusion_similarity_run",
  "start_timestamp": "2026-03-23T15:30:00Z",
  "end_timestamp": "2026-03-23T16:47:04Z",
  "duration_seconds": 4624,
  "totals": {
    "embeddings": 28172,
    "fused_embeddings": 40524,
    "similarity_rows": 405216
  },
  "windows": [
    {"window_id": "win-001", "inserted": 1024, "errors": 0, "warnings": 0},
    {"window_id": "win-002", "inserted": 2048, "errors": 0, "warnings": 1, "warning_message": "padded vectors due to dim mismatch"},
    {"window_id": "win-003", "inserted": 4096, "errors": 0, "warnings": 2, "warning_message": "padded vectors due to dim mismatch"},
    {"window_id": "win-004", "inserted": 8192, "errors": 0, "warnings": 0},
    {"window_id": "win-005", "inserted": 15344, "errors": 0, "warnings": 3, "warning_message": "padded vectors due to dim mismatch"}
  ],
  "notes": [
    "Padding occurred for several windows where vector dimensions were inconsistent. Warnings logged per-window.",
    "Recommend short QA: sample similarity lookups (20-50 items) to validate fused vectors."
  ]
}