**Description** Create a dedicated route to delete a translation for an entity. When triggered, the route should delete the selected non-default language translation while preserving the source language entity and all remaining translations. **Acceptance Criteria** - A dedicated delete translation route exists for translatable entities. - The route deletes only the selected translation. - The source/default language entity remains unchanged after deletion. - Other existing translations remain unaffected after deletion. - The translation is no longer available after successful deletion. - Proper access/permission checks are enforced before deletion.