Add trading signal and execution layers with database integration

- Introduced `TradingSignalLayer` and `TradeExecutionLayer` for visualizing buy/sell signals and trade entries/exits on charts.
- Implemented signal validation and filtering mechanisms to ensure data integrity and user-configurable options.
- Enhanced market data layout to support new timeframes for improved user experience.
- Updated documentation to reflect the new signal layer architecture and its integration with the dashboard.
- Ensured compatibility with existing components while maintaining a modular structure for future enhancements.

tasks/3.4. Chart layers.md

@@ -19,7 +19,7 @@ Implementation of a flexible, strategy-driven chart system that supports technic
 - `components/charts/layers/base.py` - Base layer system with CandlestickLayer, VolumeLayer, and LayerManager
 - `components/charts/layers/indicators.py` - Indicator overlay rendering (SMA, EMA, Bollinger Bands)
 - `components/charts/layers/subplots.py` - Subplot management for indicators like RSI and MACD
-- `components/charts/layers/signals.py` - Strategy signal overlays and trade markers (future bot integration)
+- `components/charts/layers/signals.py` - Strategy signal overlays and trade markers with database integration
 - `dashboard/` - **NEW: Modular dashboard structure with separated layouts and callbacks**
 - `dashboard/layouts/market_data.py` - Enhanced market data layout with chart configuration UI
 - `dashboard/callbacks/charts.py` - **NEW: Modular chart callbacks with strategy handling**
@@ -43,6 +43,7 @@ Implementation of a flexible, strategy-driven chart system that supports technic
 - Backward compatibility maintained with existing `components/charts.py` API
 - Use `uv run pytest tests/test_chart_*.py` to run chart-specific tests
 - **Modular dashboard structure implemented with complete separation of concerns**
+- **Signal layer architecture implemented with database integration for bot signals**
 - Create documentation with important components in ./docs/components/charts/ folder without redundancy
 
 ## Tasks
@@ -85,13 +86,13 @@ Implementation of a flexible, strategy-driven chart system that supports technic
   - [x] 4.7 Test dashboard integration with real market data
 
 - [ ] 5.0 Signal Layer Foundation for Future Bot Integration
-  - [ ] 5.1 Create signal layer architecture for buy/sell markers
-  - [ ] 5.2 Implement trade entry/exit point visualization
+  - [x] 5.1 Create signal layer architecture for buy/sell markers
+  - [x] 5.2 Implement trade entry/exit point visualization
   - [ ] 5.3 Add support/resistance line drawing capabilities
   - [ ] 5.4 Create extensible interface for custom strategy signals
   - [ ] 5.5 Add signal color and style customization options
   - [ ] 5.6 Prepare integration points for bot management system
-  - [ ] 5.7 Create foundation tests for signal layer functionality 
+  - [ ] 5.7 Create foundation tests for signal layer functionality
 
 - [ ] 6.0 Documentation **⏳ IN PROGRESS**
   - [x] 6.1 Create documentation for the chart layers system
@@ -116,10 +117,11 @@ Implementation of a flexible, strategy-driven chart system that supports technic
 - **Chart callbacks**: Updated to handle new layer system with strategy support
 - **Real-time updates**: Working chart updates with indicator toggling
 - **Market data integration**: Confirmed working with live data
+- **Signal layer architecture**: Complete foundation for bot signal visualization
 
 ### 📋 **NEXT PHASES**
-- **5.0 Signal Layer**: Foundation for bot signal integration
+- **5.2-5.7**: Complete signal layer implementation
 - **6.0 Documentation**: Complete README and final documentation updates
 
-The chart layers system is now **production-ready** with full dashboard integration! 🚀
+The signal layer foundation is now **implemented and ready** for bot integration! 🚀