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>

.gitignore

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+# Environment and secrets
+.env
+.env.local
+.env.*.local
+*.pem
+*.key
+credentials.json
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+ENV/
+env/
+.venv/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Logs (keep structure, ignore content)
+logs/*.log
+logs/**/*.log
+
+# Data files (large)
+data/market_data/
+data/trade_logs/trades/*.csv
+data/trade_logs/ml_data/*.csv
+
+# Models (large binary files)
+models/*.pkl
+models/*.joblib
+models/*.h5
+
+# Backtest results (generated)
+backtests/results/*.csv
+
+# Node modules (dashboard)
+web-dashboard/node_modules/
+web-dashboard/.next/
+web-dashboard/out/
+
+# OS files
+.DS_Store
+Thumbs.db
+desktop.ini
+
+# Temporary files
+*.tmp
+*.temp
+*.bak
+
+# Jupyter
+.ipynb_checkpoints/
+
+# Docker
+docker/data/