{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-25T03:01:19.121676+00:00","duration_seconds":1.67089,"id":301470,"input_summary":"chars=786 node=683210","metadata":{"llm_candidates":[{"callsign":"AK7ZVX","confidence":1.0},{"callsign":"KK7NQN","confidence":0.55}]},"output_summary":"ai_candidates=2 merged=3 calls=AK7ZVX,KK7NQN","recording_id":4232,"started_at":"2026-06-25T03:01:17.450786+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":4232}