- DMS edit view: add Destinatär, Land, Pächter, Verpachtung dropdowns
so documents can be assigned to entities after upload
- Geschichte: add M2M dokumente field on GeschichteSeite model
- Geschichte form: checkboxes to select/link Stiftungsgeschichte docs
- Geschichte detail: show linked documents in sidebar with download
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
