Feature: Add OIDC Support for Self-Hosted Matrix Servers

[Fatima-Habboub]

User reported being unable to log in to the app using their self-hosted, unfederated Matrix server, which relies exclusively on OIDC (OpenID Connect) authentication via MAS (Matrix Authentication Service). Since m.login.password is not supported by their server, they cannot use the app.

Expected Outcome:

• Add OIDC authentication support for compatibility with servers that don’t support m.login.password.

Acceptance Criteria:

• Users can log in via OIDC when m.login.password is unavailable.
• The app detects and supports OIDC-capable servers seamlessly.
• Ensure no regressions in existing login functionality.