- Add migrate_to_landverpachtung management command that converts
old Land-level pacht fields (aktueller_paechter, pachtbeginn, etc.)
into proper LandVerpachtung records
- Fix SyntaxError in system.py (fancy Unicode quotes in f-strings)
- Ran migration: 1 LandVerpachtung record created for Jens Bodden
The old system stored pacht data directly on the Land model.
The new LandVerpachtung model supports multiple leases per Land.
The verpachtung_list view queries LandVerpachtung, which was empty.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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