Fixes: 1) Correctly handle `IntegrityError` and `MultipleObjectsReturned` exceptions in `process_attribute` to prevent crashes; 2) Add missing imports for `django.db.IntegrityError`, `Attribute`, and `AttributeGroup`.
Extra: Cleanup formatting in `poetry.lock` for consistent style.
Fixes: None;
Extra: 1) Update poetry.lock for the new aiosmtpd package; 2) Perform formatting changes to json and hash entries in poetry.lock for consistency.
Added `paramiko`, `django-dbbackup`, `django-storages`, and `bcrypt` to the dependency list in `pyproject.toml`. Reformatted file entries in `poetry.lock` to ensure consistent alignment with style guidelines, improving readability and maintainability.
Updated the API version from 2.5.0 to 2.6.0 in the DRF settings for consistency across configurations. Reformatted migration files for better readability, ensuring consistency in code style and improving maintainability. These changes do not alter functionality but enhance clarity and documentation.
