Implement User Authentication

[kihuni]

Description:

• Use Django’s built-in User model and extend it for additional fields if needed (e.g., profile picture, bio).
• Implement registration, login, logout, and token-based authentication using DRF and JWT.
• Add email verification for new users.
• Write tests for all authentication endpoints.

[Popthemy]

Hi @kihuni I'd like to contribute to the project by helping with writing tests for the UserViewSet and RoleViewSet endpoints. I have some suggestions on how to approach this task and I'd love to take it on.

Could you please assign this task to me so I can get started?

Thanks!