- Created LOCAL_DEVELOPMENT_GUIDE.md and DEPLOYMENT_GUIDE_MANUAL.md from legacy txt files.
- Migrated country/time_zone data and requirements.txt to documentation/reference_data/.
- Removed redundant admin/documentation/ and admin/data_files/ directories.
- Enhanced app/lib_schema_v3.py to explicitly capture 'required' fields from DB 'NOT NULL' constraint.
- Added verification tests for schema logic and standalone DB connectivity.
- Created app/lib_schema_v3.py to isolate database and Pydantic model introspection.
- Updated app/routers/api_crud_v3.py to use get_object_schema_info(), completing the modularization.
- Finalized refactoring plan documentation in documentation/REFACTOR_API_CRUD_V3.md.