{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-04T14:53:12.758485+00:00","duration_seconds":1.385845,"id":1363567,"input_summary":"chars=740 node=683211","metadata":{"llm_candidates":[{"callsign":"KK7Z","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=KK7Z","recording_id":142845,"started_at":"2026-07-04T14:53:11.372640+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":141301}