Introduce support for Central Authentication Service (CAS) alongside existing OIDC and SAML by integrating a new CAS server app and custom CAS authentication user model. Streamline sign-in infrastructure with updated URL patterns. As part of the update, refactor user model `username` resolution to leverage the email field directly. Includes necessary Django migrations to support new authentication features and removes a deprecated OIDC provider dependency.
Kumi
da49ddabcc
