Add metrics for lstm (USD_CHF H1)

models/lstm/USD_CHF_H1/metrics.json

@@ -0,0 +1,15 @@
+{
+  "accuracy": 0.3868268611885861,
+  "f1_weighted": 0.45938959752709685,
+  "precision": 0.7461139095327248,
+  "recall": 0.3868268611885861,
+  "initial_capital": 10000.0,
+  "final_equity": 9999.95,
+  "total_return_pct": -0.0,
+  "max_drawdown_pct": -0.0,
+  "sharpe_ratio": -0.476,
+  "total_trades": 4,
+  "win_rate_pct": 50.0,
+  "avg_pnl_per_trade": -0.0125,
+  "trades_per_1000_bars": 0.43
+}