- Add VierteljahresNachweis model for quarterly document tracking
- Remove studiennachweis_erforderlich field (now always required)
- Fix modal edit view to include studiennachweis section
- Implement automatic DestinataerUnterstuetzung creation when requirements met
- Set payment due dates to exact quarter end dates (Mar 31, Jun 30, Sep 30, Dec 31)
- Add quarterly confirmation CRUD views with modal and full-screen editing
- Update templates with comprehensive quarterly management interface
- Include proper validation, status tracking, and progress indicators
- Add LandVerpachtung model with Land and Paechter relationships
- Implement full CRUD operations for Verpachtungen
- Add responsive Bootstrap templates with JavaScript calculations
- Integrate document linking functionality similar to other entities
- Add navigation links and URL patterns
- Include CSV import support for Paechter data
- Fix template encoding issues for proper UTF-8 support
- Enhance administration interface with Verpachtung CSV import
This implements the complete Verpachtung management feature requested,
allowing users to manage land lease agreements with proper relationships
to properties (Laenderei) and tenants (Paechter), following the same
patterns as Foerderung/Destinataer relationships.
- Apply Black formatting to all Python files in core and stiftung modules
- Fix import statement ordering with isort
- Ensure all code meets automated quality standards
- Resolve CI/CD pipeline formatting failures
- Maintain consistent code style across the entire codebase
- Add dotenv loading to Django settings
- Update CI workflow to use correct environment variables
- Set POSTGRES_* variables instead of DATABASE_URL
- Add environment variables to all Django management commands
- Fixes CI test failures due to database connection issues
