{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-06T01:43:00.303789+00:00","duration_seconds":0.969,"id":1412950,"input_summary":"chars=147 node=683211","metadata":{"llm_candidates":[{"callsign":"M4HD","confidence":0.78},{"callsign":"R4XC","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=M4HD,R4XC","recording_id":146183,"started_at":"2026-07-06T01:42:59.334789+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":144409}