Refactored i18n implementation to support seamless language switching
without page reload by pre-loading all translations and using
locale-aware navigation helpers.
Changes:
- Created centralized routing config (i18n/routing.ts) with localePrefix: 'never'
- Added type-safe navigation helpers (i18n/navigation.ts)
- Implemented custom IntlProvider with pre-loaded EN/FR translations
- Updated all pages to use new useRouter from i18n/navigation
- Added language switcher to appearance settings
- Removed URL-based locale routing (no more /en/ or /fr/ prefixes)
- Language preference persisted via Zustand localStorage
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- showPreview: Conditionally render email preview in list based on setting
- externalContentPolicy: Control external content (ask/block/allow modes)
- deleteAction: Move to trash or permanently delete based on preference
- debugMode: Add conditional logging via new lib/debug.ts utility
Also includes:
- Add moveToTrash method to JMAP client for trash-based deletion
- Update TODO.md with verified implementation status
- Migrate middleware.ts to proxy.ts (Next.js deprecation)