{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-10T18:44:29.917789+00:00","duration_seconds":0.736693,"id":1573627,"input_summary":"chars=777 node=683210","metadata":{"llm_candidates":[{"callsign":"K7PL","confidence":0.78},{"callsign":"M7XT","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=4 calls=K7PL,M7XT","recording_id":157317,"started_at":"2026-07-10T18:44:29.181096+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":154464}