Move language list to supportedLanguages.ts so TranslationContext and
settingsStore can import from a single source of truth, eliminating
the hardcoded array in setLanguageTransient.
- Use apiClient instead of raw fetch() in configApi.getPublicConfig
- Validate DEFAULT_LANGUAGE against supported codes on server startup
- Log warning instead of silently swallowing fetch errors in LoginPage
- Case-insensitive browser language matching in detectBrowserLanguage
- Guard against undefined navigator in detectBrowserLanguage
- Validate language code in setLanguageTransient before applying
- Import directly from TranslationContext instead of barrel index
Replace the language cycling button on the login page with a dropdown
showing all 14 supported languages. Add automatic browser/OS language
detection via navigator.languages, falling back to a configurable
DEFAULT_LANGUAGE env var, then 'en' as last resort.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
jubnl