integratoin fixes - COB and CNN

.kiro/specs/websocket-cob-data-fix/tasks.md

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+# Implementation Plan
+
+- [ ] 1. Fix data structure initialization in MultiExchangeCOBProvider
+  - Ensure all collections are properly initialized during object creation
+  - Add defensive checks before accessing data structures
+  - Implement proper initialization for symbol-specific data structures
+  - _Requirements: 1.1, 1.2, 2.1_
+
+- [ ] 1.1. Update MultiExchangeCOBProvider constructor
+  - Modify __init__ method to properly initialize all data structures
+  - Ensure exchange_order_books is initialized for each symbol and exchange
+  - Initialize session_trades and svp_cache for each symbol
+  - Add defensive checks to prevent NoneType errors
+  - _Requirements: 1.2, 2.1_
+
+- [ ] 1.2. Fix _notify_cob_subscribers method
+  - Add validation to ensure cob_snapshot is not None before processing
+  - Add defensive checks before accessing cob_snapshot attributes
+  - Improve error handling for subscriber callbacks
+  - Add detailed logging for debugging
+  - _Requirements: 1.1, 1.5, 2.3_
+
+- [ ] 2. Enhance WebSocket data processing in MultiExchangeCOBProvider
+  - Improve error handling in WebSocket connection methods
+  - Add validation for incoming data
+  - Implement reconnection logic with exponential backoff
+  - _Requirements: 1.3, 1.4, 3.1, 3.2_
+
+- [ ] 2.1. Update _stream_binance_orderbook method
+  - Add data structure initialization checks
+  - Implement exponential backoff for reconnection attempts
+  - Add detailed error logging
+  - Ensure proper cleanup on disconnection
+  - _Requirements: 1.4, 3.2, 3.4_
+
+- [ ] 2.2. Fix _process_binance_orderbook method
+  - Add validation for incoming data
+  - Ensure data structures exist before updating
+  - Add defensive checks to prevent NoneType errors
+  - Improve error handling and logging
+  - _Requirements: 1.1, 1.3, 3.1_
+
+- [ ] 3. Update StandardizedDataProvider to handle COB data properly
+  - Improve initialization of COB-related data structures
+  - Add validation for COB data
+  - Enhance error handling for COB data processing
+  - _Requirements: 1.3, 2.2, 2.3_
+
+- [ ] 3.1. Fix _get_cob_data method
+  - Add validation for COB provider availability
+  - Ensure proper initialization of COB data structures
+  - Add defensive checks to prevent NoneType errors
+  - Improve error handling and logging
+  - _Requirements: 1.3, 2.2, 3.3_
+
+- [ ] 3.2. Update _calculate_cob_moving_averages method
+  - Add validation for input data
+  - Ensure proper initialization of moving average data structures
+  - Add defensive checks to prevent NoneType errors
+  - Improve error handling for edge cases
+  - _Requirements: 1.3, 2.2, 3.3_
+
+- [ ] 4. Implement recovery mechanisms for WebSocket failures
+  - Add state tracking for WebSocket connections
+  - Implement automatic reconnection with exponential backoff
+  - Add fallback mechanisms for temporary failures
+  - _Requirements: 3.2, 3.3, 3.4_
+
+- [ ] 4.1. Add connection state management
+  - Track connection state for each WebSocket
+  - Implement health check mechanism
+  - Add reconnection logic based on connection state
+  - _Requirements: 3.2, 3.4_
+
+- [ ] 4.2. Implement data recovery mechanisms
+  - Add caching for last valid data
+  - Implement fallback to cached data during connection issues
+  - Add mechanism to rebuild state after reconnection
+  - _Requirements: 3.3, 3.4_
+
+- [ ] 5. Add comprehensive logging for debugging
+  - Add detailed logging throughout the COB processing pipeline
+  - Include context information in log messages
+  - Add performance metrics logging
+  - _Requirements: 1.5, 3.1_
+
+- [ ] 5.1. Enhance logging in MultiExchangeCOBProvider
+  - Add detailed logging for WebSocket connections
+  - Log data processing steps and outcomes
+  - Add performance metrics for data processing
+  - _Requirements: 1.5, 3.1_
+
+- [ ] 5.2. Add logging in StandardizedDataProvider
+  - Log COB data processing steps
+  - Add validation logging
+  - Include performance metrics for data processing
+  - _Requirements: 1.5, 3.1_
+
+- [ ] 6. Test all changes thoroughly
+  - Write unit tests for fixed components
+  - Test integration between components
+  - Verify dashboard operation with COB data
+  - _Requirements: 1.1, 2.3, 3.4_
+
+- [ ] 6.1. Write unit tests for MultiExchangeCOBProvider
+  - Test data structure initialization
+  - Test WebSocket processing with mock data
+  - Test error handling and recovery
+  - _Requirements: 1.1, 1.3, 3.1_
+
+- [ ] 6.2. Test integration with dashboard
+  - Verify COB data display in dashboard
+  - Test system stability under load
+  - Verify recovery from failures
+  - _Requirements: 1.1, 3.3, 3.4_