Built a comprehensive SPY options trading system featuring:

Core Components:
- Options data processor with Greeks calculation (Delta, Gamma, Theta, Vega, Rho)
- Advanced feature engineer with 50+ technical indicators
- SPY options trading environment for RL training
- CAGR-based multi-timeframe optimizer (1m, 5m, 15m, 1h, 1d)
- Continuous learning agent using PPO (Proximal Policy Optimization)
- Real-time trading tool with minute-by-minute updates
- Comprehensive performance tracking and visualization

Key Features:
✅ Self-learning from every trade
✅ Options Greeks analysis for optimal strike selection
✅ Multi-indicator signals (RSI, MACD, Bollinger, ATR, ADX, etc.)
✅ Price target predictions (upside, downside, expected)
✅ Adaptive timeframe selection based on CAGR
✅ Risk metrics (Sharpe, Sortino, Calmar ratios)
✅ Equity curve, drawdown, and returns visualization
✅ Trade-by-trade logging and analysis
✅ Model persistence and incremental updates

Files Added:
- finrl/meta/preprocessor/options_processor.py
- finrl/meta/preprocessor/spy_feature_engineer.py
- finrl/meta/env_options_trading/env_spy_options.py
- spy_trading_tool/timeframe_optimizer.py
- spy_trading_tool/learning_agent.py
- spy_trading_tool/spy_trader.py
- spy_trading_tool/performance_tracker.py
- spy_trading_tool/config.py
- spy_trading_tool/README.md
- spy_trading_tool/requirements.txt
- spy_trading_tool/example_usage.py

The system continuously learns from trades, optimizes across multiple
timeframes, and provides intelligent trading signals with price targets.
Perfect for SPY options trading with real-time adaptation.