docs: add comprehensive JSDoc documentation to all Python modules

[Ain477]

• Add module docstrings with author, version, and description to all 11 Python files
• Document all classes with inheritance information and method details
• Add function docstrings with parameter types, return values, and exceptions
• Include @param, @returns, @throws, @extends, @author, @Version, @SInCE tags
• Cover main application files: main.py, GetDataV2.py, SetupPordaApp.py
• Document settings module: SettingsValue.py, message.py, startup.py, settingscss2.py, doc.py, ga4_porda.py, EngineSetting.py, Settings.py
• Improve code maintainability and developer experience
• Follow consistent JSDoc-style documentation standards throughout codebase

Files modified:

• main.py: Add class and method documentation for KeyBoardManager, CPUThread, MainWindow, SystemTrayIcon
• GetDataV2.py: Document screen capture and window management functions
• SetupPordaApp.py: Document application setup and configuration functions
• settings/*.py: Document all settings management, UI, and engine configuration modules