{"message":"Welcome to KEK Backtrader API. Use the async endpoints for better performance.","endpoints":{"async":{"/backtest/submit":"Submit a new backtest job (async)","/backtest/{job_id}":"Get FULL job results (includes equity_curve & trades)","/backtest/jobs":"List jobs with SUMMARY metrics only (optimized)","PUT /backtest/{job_id}/cancel":"Cancel a job","DELETE /backtest/{job_id}/delete":"Delete a backtest record"},"strategy_library":{"GET /strategies":"List saved strategies","POST /strategies":"Save a new strategy","GET /strategies/{id}":"Get strategy details","POST /strategies/{id}/backtest":"Run backtest from saved strategy"},"legacy":{"/backtest":"Run backtest synchronously (deprecated)","/transform":"Transform frontend JSON to backend format"}},"performance_note":"Use /backtest/jobs for listing (lightweight) and /backtest/{job_id} for full details"}