feat(workspace): redesign UI with Docker support and enhanced editor components

- Remove obsolete IDE configuration files (.idea directory)
- Clean up archived specification documents from .kiro/specs
- Add Docker Compose configuration for containerized deployment
- Implement new WPF-based Windows desktop application with XAML UI
- Replace floating ball form with modern MainWindow implementation
- Add Directory.Build.props for centralized project configuration
- Enhance API endpoints with new file system search contracts
- Refactor web workspace components with virtual file tree and lazy loading
- Add keyboard shortcuts help dialog and code selection floating button
- Implement useCodeSelectionToChat and useDebounce custom hooks
- Add file path parser utility for improved path handling
- Update workspace store with enhanced state management
- Migrate from project-specific workspace to unified workspace layout
- Update .gitignore to exclude .vs directory
- Modernize project structure and improve developer experience

Author: 239573049

.gitignore

@@ -13,3 +13,4 @@ src/MoYuCode/wwwroot/
 node_modules
 /.vs/MoYuCode.slnx
 *.DotSettings.user
+.vs