{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-02T11:28:38.700007+00:00","duration_seconds":3.367115,"id":1286157,"input_summary":"chars=569 node=683210","metadata":{"llm_candidates":[{"callsign":"KK4DUK","confidence":0.78},{"callsign":"K5ORD","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=KK4DUK,K5ORD","recording_id":137174,"started_at":"2026-07-02T11:28:35.332892+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":136207}