Rebuild the Wails desktop shell into a localized tabbed control panel so provider, alias, sync, and settings workflows are easier to manage in one place. Extend desktop preferences with theme and language, document the desktop build flow, and keep the browser fallback shell aligned with the same frontend.
Bring the Wails desktop shell to feature parity with the CLI for provider and alias management while keeping the browser fallback working. Wire tray, notifications, autostart, and GUI warnings so desktop flows behave predictably.
