{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-12T08:03:26.427900+00:00","duration_seconds":0.621668,"id":1617477,"input_summary":"chars=13 node=683210","metadata":{"llm_candidates":[{"callsign":"K7SBI","confidence":0.78},{"callsign":"KL70U","confidence":0.78}]},"output_summary":"ai_candidates=2 merged=2 calls=K7SBI,KL70U","recording_id":160298,"started_at":"2026-07-12T08:03:25.806232+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":157159}