refactor(documents): Consolidate filer-based models as primary
- Replaced models.py with filer version (FilerFileField)
- Replaced admin.py with full filer admin (thumbnails, previews, file info)
- Replaced rules.py with updated django-rules predicates
- Replaced tests.py with comprehensive test suite (298 lines, 16 tests)
- Deleted duplicate V2 files: models_v2.py, admin_v2.py, rules_v2.py, tests_v2.py
- Deleted management/commands/migrate_to_filer.py (no longer needed)
- Created migration 0005_migrate_to_filer.py with data migration:
* Migrated 23 existing documents from FileField to FilerFileField
* Dropped DocumentV2 and DocumentAcknowledgementV2 models
Breaking changes: None (V2 models removed, primary models enhanced)
Migration applied: All 23 documents successfully migrated to django-filer
igor_nadein
499fcb1e78