{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-05T14:54:31.090823+00:00","duration_seconds":1.097797,"id":1397653,"input_summary":"chars=704 node=683210","metadata":{"llm_candidates":[{"callsign":"KB7DFB","confidence":0.78},{"callsign":"K3AS","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=KB7DFB,K3AS","recording_id":145149,"started_at":"2026-07-05T14:54:29.993026+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":143447}