- Refactor CSS from @layer to plain CSS for guaranteed inclusion
- Add Svelte 5 runes safety checks in calendars/events stores
- Integrate shared-auth-ui pages with CalendarLogo and translations
- Add AppSlider and LanguageSelector components
- Add feedback service and mana route
- Add auth route detection in layout to skip navigation on auth pages
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Co-Authored-By: Claude <noreply@anthropic.com>