feat: Add core trading modules for risk management, backtesting, and execution algorithms, alongside a new ML transparency widget and related frontend dependencies.

docs/user_manual/trading.md

@@ -75,6 +75,10 @@ The Autopilot feature provides autonomous trading signal generation with two dis
 - ✅ Optimizes strategy selection
 - ✅ Market condition analysis
 - ✅ Performance tracking and learning
+- ✅ **Online Learning**: Continuously improves from live trading data
+- ✅ **Confidence Calibration**: Accurate confidence scores using Platt scaling/isotonic regression
+- ✅ **Model Explainability**: SHAP values for understanding model decisions
+- ✅ **Advanced Regime Detection**: HMM/GMM-based market regime classification
 
 **Tradeoffs**:
 - ❌ Requires training data (needs historical trades)