Refactor Monolithic pt_hub.py into Modular Components

[sjackson0109]

Overview

The main pt_hub.py file is currently 8,082 lines long, making it difficult to maintain, test, and understand. This violates the Single Responsibility Principle and creates maintenance challenges.

Current Issues

• Monolithic architecture with mixed responsibilities
• GUI components, business logic, and data handling in one file
• Difficult to unit test individual components
• Hard to onboard new contributors
• Increased risk of merge conflicts

Proposed Refactoring

1. Separate GUI Components

   • Extract chart/plotting functionality to chart_components.py
   • Move trading controls to trading_gui.py
   • Create settings_gui.py for configuration dialogs

2. Business Logic Separation

   • Move training logic to training_controller.py
   • Extract order management to dedicated module
   • Create portfolio_manager.py for portfolio operations

3. Data Layer

   • Separate data models into models/ directory
   • Create dedicated service layer for external API calls
   • Implement proper data validation

Benefits

• Improved maintainability and readability
• Better test coverage possibilities
• Easier parallel development
• Reduced coupling between components
• Better separation of concerns

Implementation Strategy

1. Create new module structure
2. Gradually extract components with comprehensive tests
3. Maintain backward compatibility during transition
4. Update documentation and imports