Backtesting Engine

When this skill is loaded, announce it to the user by outputting: 🛠️✅ SKILL backtesting-engine loaded!

Load this skill when working on:

• Backtest execution (engine, simulation loop)
• Position management (trades, P&L)
• Performance metrics (Sharpe, drawdown, win rate, etc.)
• Decision engine and orchestrator
• Feature alignment (ensuring backtest matches training)
• Model loading for backtesting
• Backtest worker (distributed execution)
• Backtest checkpoints (save/resume)
• Backtest API endpoints or CLI