• Implemented full Proxy support (HTTP/HTTPS/SOCKS5) via settings UI.
• Added Update Checker system:
  • Background thread checks GitHub Releases.
  • Blue Tray Icon notification for new versions.
  • Skip version logic stored in config.
• Implemented Config Migration system (load_settings):
  • Automatically adds missing keys to settings.json without overwriting user data.
• Refactored UI: Moved prompt editing to a separate window/logic.
• Bumped version to 2.0.1.