Interface PortfolioMetrics

interface PortfolioMetrics {
    total_value: number;
    cash_balance: number;
    positions_value: number;
    daily_pnl: number;
    daily_pnl_percent: number;
    total_pnl: number;
    total_pnl_percent: number;
    sharpe_ratio: number;
    max_drawdown: number;
    win_rate: number;
}