Add ngrok 'tunnel' mode to dev scripts and documentation, plus a large UI overhaul for the Servers pages.
- Add .gitattributes and new scripts/setup-wsl.sh helper.
- Extend dev.ps1 and dev.sh with a new 'tunnel' mode that starts backend+frontend and launches an ngrok tunnel (supports NGROK_DOMAIN, NGROK_AUTHTOKEN, and sets sensible CORS_ORIGINS). Includes polling of ngrok API, process cleanup, and helpful error messages.
- Update docs/LOCAL_DEVELOPMENT.md with an "Exposing Your Local Control Plane (ngrok)" guide and WSL setup notes.
- Revamp frontend pages: ServerDetail.jsx and Servers.jsx refactored with new header layouts, status/avatars, status pills, telemetry rows, selectable table rows, bulk actions, confirm dialogs, improved add-server modal, new icons (FolderTinyIcon, MoreIcon), utilities (formatLastSeen, clamp), and accessibility/interaction improvements (menus, selection, copy install command).
- Update servers SCSS to support the new layouts and loading states.
These changes add a developer-friendly tunnel mode for remote testing and significantly improve the server management UX in the frontend.
