{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-26T06:43:21.135172+00:00","duration_seconds":4.633384,"id":468743,"input_summary":"chars=1450 node=oldsys","metadata":{"llm_candidates":[{"callsign":"Y4ENB","confidence":1.0},{"callsign":"Y4NB","confidence":1.0}]},"output_summary":"ai_candidates=2 merged=2 calls=Y4ENB,Y4NB","recording_id":94394,"started_at":"2026-06-26T06:43:16.501788+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":94395}