[feat]: refact entity, add global package for method global or varibl…

[Innocent-Akim]

…e i add a base entity for soft-delete, createAt and updateAt

List of changes

• Add / Fix / Change / Remove

Checklist

• related issue
• [ ] My changes generate no new warnings
• [ ] My code follows the style guidelines of this project
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have added tests that prove my fix is effective or that my feature works

[Innocent-Akim]

1. I added a global package.
2. In the package, I added two files: base.entity and index.
3. In base.entity, I refactored the code to include soft-delete functionality and fields for createdAt and updatedAt.