{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-17T21:20:08.093154+00:00","duration_seconds":0.647328,"id":1809854,"input_summary":"chars=1036 node=683211","metadata":{"llm_candidates":[{"callsign":"M7KNO","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=M7KNO","recording_id":173175,"started_at":"2026-07-17T21:20:07.445826+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":168691}