//! Core trading engine components.
//!
//! This module provides the fundamental types for backtesting:
//! - `Order`: Market, limit, and conditional orders.
//! - `Position`: Open trades with exit rules.
//! - `Wallet`: Tracks balance, fees, and P&L.
//! - `Candle`: OHLCV data for backtesting.
//! - `Backtest`: The engine to run the backtest.
pub use *;
pub use *;
pub use *;
pub use *;
pub use *;