This pull request introduces a new Settings abstraction for managing application settings and refactors related logic throughout the desktop app. It also adds tests for settings management, introduces a new utility for accessing bundled files, and improves tray and window management behavior.
Settings abstraction and refactor:

• Introduced a new Settings class in settings.ts to encapsulate reading and writing of settings such as server URL, minimize-to-tray, and window bounds, replacing direct use of electron-store. All logic for handling these settings is now centralized in this class.
• Refactored start.ts to use the new Settings class throughout, including for reading the server URL, window bounds, and minimize-to-tray state. This removes duplicated logic and simplifies the main process code. [1] [2] [3] [4]

Testing improvements:

• Added a comprehensive test suite for the new Settings class, covering all major behaviors and edge cases.
• Added tests for tray badge icon logic in trayUtils.test.ts.

Tray and window management enhancements:

• Improved minimize-to-tray behavior: window now hides instead of closing if the setting is enabled, and the tray controller is notified of badge updates. [1] [2]
• Added IPC handler for retrieving the minimize-to-tray setting from the renderer process.
• Updated menu action dispatching to support toggling minimize-to-tray from the menu and to close the window (not quit the app) when "exit" is selected. [1] [2] [3]

Utilities and configuration:

• Added a utility function to retrieve files from the bundled public folder, improving code clarity and cross-platform compatibility. [1] [2]
• Minor fix to config file path construction for better compatibility.

Other:

• Minor formatting and copyright/license header additions.
• Small cleanup in test files for consistency.

These changes collectively improve the modularity, testability, and user experience of the desktop application.