{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-28T21:35:36.013138+00:00","duration_seconds":2.013307,"id":1072017,"input_summary":"chars=1164 node=oldsys","metadata":{"llm_candidates":[{"callsign":"KB1K1","confidence":0.78},{"callsign":"K1K1","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=3 calls=KB1K1,K1K1","recording_id":23988,"started_at":"2026-06-28T21:35:33.999831+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":23989}