feat: Smart AI Trading Bot for XAUUSD with ML and SMC

- XGBoost ML model with 37 features for market direction prediction
- Smart Money Concepts (SMC): Order Blocks, FVG, BOS, CHoCH
- HMM market regime detection (trending/ranging/volatile)
- ATR-based stop loss with 1.5 ATR minimum distance
- Broker-level SL protection with fallback
- Time-based exit (max 6 hours per trade)
- Session-aware trading optimized for London/NY overlap
- Auto-retraining based on market conditions
- Telegram notifications and web dashboard
- Backtest results: 63.9% win rate, 2.64 profit factor, 4.83 Sharpe

Backtest period: Jan 2025 - Feb 2026, 654 trades, $4,189 net P/L

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

web-dashboard/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
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+# dependencies
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+.yarn/*
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+# testing
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+# next.js
+/.next/
+/out/
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+# production
+/build
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+# misc
+.DS_Store
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+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
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+.env*
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+# vercel
+.vercel
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+# typescript
+*.tsbuildinfo
+next-env.d.ts