Add a new Files section powered by WebDAV for browsing, uploading,
downloading, renaming, and deleting files and folders.
New features:
- WebDAV file browser with grid/list views and breadcrumb navigation
- File upload (drag-and-drop and button), folder creation, rename, delete
- File preview modals for images and other file types
- WebDAV proxy API route to handle authentication
- Navigation rail entry for Files (auto-hidden when WebDAV is unsupported)
Auth improvements:
- Fix premature redirects on calendar, contacts, and settings pages by
adding explicit auth check on mount before redirecting to login
- Persist active settings tab in localStorage
Other:
- Expose getAuthHeader() and getServerUrl() on JMAPClient
- Add WebDAV store with connection testing and capability detection
- Add i18n translations for file browser in all 8 locales (de, en, es,
fr, it, ja, nl, pt)
- Added `isMobile` prop to `CalendarWeekView`, `EventDetailPopover`, `ContactDetail`, `ContactGroupDetail`, and `EmailComposer` components for improved mobile layout.
- Adjusted layout and styles in `CalendarWeekView` to display a 3-day view on mobile.
- Updated `EventDetailPopover` to adapt its size and layout for mobile devices.
- Modified `ContactDetail` and `ContactGroupDetail` to adjust padding and font sizes based on mobile view.
- Enhanced `EmailComposer` with mobile-friendly header and field layouts, including auto-saving draft functionality.
- Added confirmation dialog for unsaved changes when closing the email composer.
- Updated localization files to include new strings for draft management.
- Add NavigationRail component (desktop vertical icon sidebar + mobile bottom tab bar)
- Add ConfirmDialog with promise-based useConfirmDialog hook for async confirmation flow
- Add WelcomeBanner onboarding component (one-time display, localStorage persistence)
- Polish login form UX (shake on error, TOTP slide animation, password visibility toggle, session expired banner)
- Add inline form validation with shake animation in email composer and contacts
- Add empty state patterns for contacts (no data vs no search results with contextual actions)
- Improve toast notification system with undo action support and typed durations
- Add WCAG AA prefers-reduced-motion media query, safe area insets, sr-only live regions
- Add template settings tab and keyboard shortcut integration
- Update all 8 locale translations
Add organizer/attendee UI with RSVP, contact autocomplete for participants,
scheduling messages, and inline calendar invitation banner in email viewer
with auto-detect .ics attachments, RSVP/import to calendar, and cancellation display.
- Address book with JMAP sync and local fallback (contacts CRUD,
search/filter, composer autocomplete, i18n for 8 languages)
- Fix email layout: remove horizontal scroll, left-side clipping,
and empty spaces from blocked external images in newsletters
- Update all dependencies to latest compatible versions
- Expand i18n from 3 to 8 languages (added ES, IT, DE, NL, PT)
- Upgrade Next.js to 16.1.6 for security patches