- Create unified date/time formatter with Intl-first approach and dayjs fallback
- Add support for is/lt/nb locales in Booker components
- Unify date formatting across Booker (Header, dates, weekdays)
- Update translation pipeline to include is, lt, nb
- Add tests for new locales and formatter
- Add timezone support in dayjs fallback
- Add formatter caching with circuit breaker
- Use unified formatDateTime in Header.tsx