- Add LocaleSubscriber: detects browser language, honours session override (priority 20)
- Add LocaleSwitchController: stores locale in session, linked from user menu
- Add admin.en.yaml / admin.de.yaml translation files (95 keys each)
- Wire translation fallback to EN in config/packages/translation.yaml
- Replace all hard-coded strings in CRUD controllers with TranslatableMessage
- Inject TranslatorInterface into DashboardController, ArticleCrudController,
AIPipelineJobCrudController and PipelineStreamController; add locale switcher
links (English / Deutsch) to the user menu
- Add confirmation dialog to "Re-run AI" and "Retry" pipeline actions
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>