Refactorization from auth with Github to a generic IDP using OAuth2 like Auth0, Keycloak, WSO2IS

[ndy7stillx86ihz]

This pull request introduces significant changes to the project, including the integration of a new OAuth2-based authentication system, project restructuring, and updates to the configuration and documentation. The changes primarily focus on enabling authentication with a generic Identity Provider (IDP) instead of GitHub, improving modularity, and updating project settings and dependencies.

Authentication System Integration:

• Added OAuth2-based authentication functionality with endpoints for login, logout, and callback in authentication/views.py and authentication/urls.py. This replaces the previous GitHub-specific implementation. [1] [2]
• Updated core/settings.py to include dynamic environment-based OAuth2 configuration and removed hardcoded GitHub-specific settings. [1] [2]

Project Restructuring:

• Migrated the project management from Default PIP to UV, a modern and easy to use Project Management tool
• Renamed the project from auth to core, including updates to settings, ASGI, and URL configuration files. [1] [2] [3]
• Added a new authentication app with its own configuration (authentication/apps.py).

Configuration and Environment Updates:

• Introduced a .env.sample file for environment variables, including OAuth2 configuration placeholders.
• Updated .python-version to specify Python 3.11 as the required version.

Documentation Updates:

• Updated the README.md to reflect the transition from GitHub to a generic IDP for OAuth2 authentication and removed GitHub-specific details. [1] [2]