Initial release: JMAP Webmail Client

A modern, privacy-focused webmail client built with Next.js and the JMAP protocol.
Designed for Stalwart Mail Server.

Features:
- Full email operations (compose, reply, forward, threading)
- Real-time push notifications
- Dark/light theme support
- Mobile responsive design
- Keyboard shortcuts
- Drag-and-drop organization
- i18n (English/French)
- Security-first (external content blocked, HTML sanitization)

ROADMAP.md

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+# JMAP Webmail - Roadmap
+
+This document tracks the development status and planned features for JMAP Webmail.
+
+## Completed Features
+
+### Core Infrastructure
+- [x] Next.js 16 with TypeScript and App Router
+- [x] Tailwind CSS v4 with Oxide engine
+- [x] Zustand state management
+- [x] JMAP client implementation (jmap-jam)
+
+### Authentication
+- [x] Login with JMAP server authentication
+- [x] Session management (no password storage for security)
+- [x] Username autocomplete with history
+- [x] Logout functionality
+- [x] Authentication error handling
+
+### JMAP Server Connection
+- [x] Session establishment and keep-alive
+- [x] Connection error handling and retries
+- [x] Storage quota display
+- [x] Server capability detection
+- [x] Shared folders support (multi-account access)
+
+### Email Operations
+- [x] Email fetching and display
+- [x] Full HTML email rendering
+- [x] Compose, reply, reply-all, forward
+- [x] Draft auto-save with discard confirmation
+- [x] Mark as read/unread
+- [x] Star/unstar emails
+- [x] Delete and archive
+- [x] Color tags/labels
+- [x] Full-text search
+- [x] Attachment upload and download
+- [x] Batch operations (multi-select)
+- [x] Quick reply form
+- [x] Email threading (Gmail-style inline expansion)
+
+### Real-time Updates
+- [x] EventSource for JMAP push notifications
+- [x] State synchronization
+- [x] Email arrival notifications
+- [x] Real-time unread counts
+- [x] Mailbox change handling
+
+### User Interface
+- [x] Three-pane layout (sidebar, list, viewer)
+- [x] Minimalist design system
+- [x] Dark and light theme support
+- [x] Custom scrollbars
+- [x] Mobile responsive design
+- [x] Keyboard shortcuts
+- [x] Drag-and-drop email organization
+- [x] Right-click context menus
+- [x] Hierarchical mailbox display
+- [x] Email list with avatars and visual hierarchy
+- [x] Expandable email headers
+- [x] External content warning banner
+- [x] SPF/DKIM/DMARC status indicators
+- [x] Loading states and skeletons
+- [x] Smooth transitions and animations
+- [x] Infinite scroll pagination
+- [x] Error boundaries
+- [x] Settings page with preferences
+
+### Internationalization
+- [x] English language support
+- [x] French language support
+- [x] Automatic browser language detection
+- [x] Language preference persistence
+
+### Security
+- [x] External content blocked by default
+- [x] HTML sanitization with DOMPurify
+- [x] User control for loading external content
+
+## Planned Features
+
+### Address Book & Contacts
+- [ ] Contact store with CRUD operations
+- [ ] Contacts list view with search/filter
+- [ ] Contact details view/edit form
+- [ ] Contact groups management
+- [ ] vCard import/export
+- [ ] JMAP contacts sync (if server supports)
+- [ ] Email autocomplete from contacts
+- [ ] Contacts integration in composer
+
+### Advanced Features
+- [ ] Email filters and rules
+- [ ] Calendar integration (JMAP Calendars)
+- [ ] Email templates
+- [ ] Signature management
+- [ ] Vacation responder settings
+- [ ] Email aliases support
+- [ ] Advanced search with filters
+- [ ] Email encryption (PGP/GPG)
+
+### Performance Optimizations
+- [ ] Virtual scrolling for large lists
+- [ ] Email content caching
+- [ ] Bundle size optimization
+- [ ] Service worker for offline support
+- [ ] Lazy loading for attachments
+
+### Testing
+- [ ] Unit tests for utilities
+- [ ] Component tests
+- [ ] E2E tests with Playwright
+- [ ] Accessibility testing
+- [ ] Performance testing
+
+### Deployment
+- [ ] Health check endpoint
+- [ ] Production build optimizations
+- [ ] Monitoring and logging
+
+### Security Enhancements
+- [ ] CSP headers configuration
+- [ ] Additional XSS protection layers
+- [ ] Rate limiting
+- [ ] CORS configuration
+
+## Known Issues
+
+- [ ] Next.js workspace root warning (cosmetic)
+
+## Contributing
+
+Want to help implement a feature? Check out our [CONTRIBUTING.md](CONTRIBUTING.md) guide!