* config adapt revert
* ci test
* fix mysql migration test
* fix
* fix
* lint fix
* fix ob config
* fix
* fix
* fix
* test over
* test
* fix
* fix
* fix style
* test over
* retain gin for pg
* gin for pg
* uuid defalut in versions
* ci test
* ci test
* fix
* fix
* fix
* fix
* pg josnb
* fix
- Introduce `WorkflowDraftVariable` model and the corresponding migration.
- Implement `EnumText`, a custom column type for SQLAlchemy designed
to work seamlessly with enumeration classes based on `StrEnum`.