{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-13T04:05:00.226834+00:00","duration_seconds":0.872881,"id":1644457,"input_summary":"chars=877 node=683211","metadata":{"llm_candidates":[{"callsign":"K7KZH","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=K7KZH","recording_id":162170,"started_at":"2026-07-13T04:04:59.353953+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":158929}