{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-28T02:29:51.521558+00:00","duration_seconds":0.627312,"id":902738,"input_summary":"chars=1513 node=oldsys","metadata":{"llm_candidates":[{"callsign":"KC1BQS","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=1 calls=KC1BQS","recording_id":36026,"started_at":"2026-06-28T02:29:50.894246+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":36027}