Introduce comprehensive architectural improvements including service layer, state management stores, repository pattern, unified logging and error handling, and test infrastructure.
Key changes:
- Add service layer with ConfigService, LoggerService, ErrorService, and storage services (StorageManager, FileManager, TransferService)
- Implement Zustand stores for rclone, openlist, mount, storage, settings, stats, and task state management
- Introduce repository layer with BaseRepository and specific implementations (ConfigRepository, StorageRepository)
- Add unified logging system with structured output, levels, and persistence
- Implement centralized error handling with categorization, user-friendly messages, and recovery
- Create component library with ErrorBoundary and reusable UI components
- Add comprehensive test suite with Vitest, setup, and utilities
- Migrate from monolithic files to modular structure with proper separation of concerns
- Update build configuration, add vitest.config.ts, and enhance TypeScript paths
- Remove deprecated files (tauriUpdater.ts, test.ts, storageRepository.ts, etc.)
BREAKING CHANGE: Major API and structural changes require updates to component imports and state access patterns. Migration guide available in docs/LOGGING_MIGRATION_GUIDE.md.
