Add metrics for lstm (AUD_USD H1)

models/lstm/AUD_USD_H1/metrics.json

@@ -0,0 +1,15 @@
+{
+  "accuracy": 0.2584763948497854,
+  "f1_weighted": 0.26937290815123854,
+  "precision": 0.6612991930989469,
+  "recall": 0.2584763948497854,
+  "initial_capital": 10000.0,
+  "final_equity": 9999.23,
+  "total_return_pct": -0.01,
+  "max_drawdown_pct": -0.01,
+  "sharpe_ratio": -1.269,
+  "total_trades": 52,
+  "win_rate_pct": 40.38,
+  "avg_pnl_per_trade": -0.0148,
+  "trades_per_1000_bars": 5.58
+}