Centralises all SnackBar calls behind UISnackbars.showError/showSuccess/
showWarning/showInfo, each themed via AppColorExtension. New warning and
info colour tokens added to both themes. Calling any method clears any
visible snackbar before showing the new one.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a context menu to each device card with contextual actions:
- Unregistered devices show a Register option (dialog with owner field
and device type dropdown)
- Registered devices show a Forget option (confirmation dialog)
Also fixes CORS to allow PUT and DELETE methods, adds device type
tooltips on the icon, and renames the "New" filter/badge to
"Not registered".
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Lists devices with New/Registered/All filtering, pull-to-refresh,
device-type icons, and visual differentiation between new and registered
devices. Introduces a reusable StatusBadge widget for colour-coded labels.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
