{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-28T10:17:42.810876+00:00","duration_seconds":0.510041,"id":970734,"input_summary":"chars=1864 node=oldsys","metadata":{"llm_candidates":[{"callsign":"WA6ABC","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=2 calls=WA6ABC","recording_id":28850,"started_at":"2026-06-28T10:17:42.300835+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":28851}