- Add Translation entity (locale/domain/key/value, unique on all three)
- Add TranslationRepositoryInterface + DoctrineTranslationRepository
- Add DatabaseTranslator decorator (#[AsDecorator]) that checks DB first
and falls back to YAML files; clears per-request cache on setLocale()
- Add TranslationCrudController with locale/domain filters and read-only
key/locale/domain on edit to prevent accidental renames
- Add "Übersetzungen / Translations" menu entry in DashboardController
- Migration 20260520000000: create app.translations table
- Migration 20260520010000: seed from admin.en.yaml + admin.de.yaml (204 rows)
- Flatten admin.de.yaml to dot-notation; add new keys for translation CRUD
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
