{"event": "start", "run_id": "xperience10m_cosmos3_super_training_readiness_20260607", "timestamp": 1780843850.0829008}
{"event": "dataset_loaded", "samples": 3808, "timestamp": 1780843852.3064456}
{"event": "complete", "status": "blocked_until_trainer_implemented", "timestamp": 1780843861.0157025}