{"execution_id":"7f15de60-4877-4bc9-b2a4-68777e8f349f","status":"failed","config_path":"pipelines/inline/7f15de60-4877-4bc9-b2a4-68777e8f349f.yaml","started_at":"2026-04-19T22:40:12.422543","completed_at":"2026-04-19T22:40:14.869444","duration_seconds":2.446901,"results":{"steps":[{"error":"mlops-2-dataset error: {'status': 'failed', 'error': 'No valid walk-forward folds generated - check data span and config', 'completed_at': '2026-04-19T22:40:14.188505'}","status":"failed","step_name":"01_dataset","step_type":"dataset","started_at_iso":"2026-04-19T22:40:13.555217"}],"started_at":"2026-04-19T22:40:13.278194","completed_at":"2026-04-19T22:40:14.595047","pipeline_name":"ar_btc_60_864b84e5f32f_20260420_054014","total_duration_seconds":0},"error":"Pipeline failed: 1 step(s) failed: 01_dataset"}