curl --request GET \
  --url https://api.rekko.ai/v1/performance

{
  "avg_edge": 0.065,
  "generated_at": "2026-03-21T15:00:00Z",
  "max_drawdown": -145,
  "mode": "shadow",
  "resolved_trades": 112,
  "roi_pct": 8.9,
  "sharpe_ratio": 1.82,
  "total_pnl": 892.5,
  "total_trades": 156,
  "win_rate": 0.68
}