{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-25T03:01:32.600666+00:00","duration_seconds":0.935832,"id":301492,"input_summary":"chars=601 node=683210","metadata":{"llm_candidates":[{"callsign":"KK7NQN","confidence":0.55}]},"output_summary":"ai_candidates=1 merged=2 calls=KK7NQN","recording_id":3974,"started_at":"2026-06-25T03:01:31.664834+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":3974}