[Feature] Add user authentication system #486
Description
Is your feature request related to a problem? Please describe.
Currently, there is no authentication system to manage user access, making it difficult to track contributions securely.
Describe the solution you'd like
Implement a robust user authentication system using OAuth2 and JWT, allowing users to register, log in, and manage their profiles securely.
Describe alternatives you've considered
Using basic session-based authentication was considered but found less scalable for future API integrations.
Additional context
Integrating this feature will lay the groundwork for future user-specific features like dashboards and personalized notifications.