OpnForm

Patch release for self-hosted licensing and Docker images.\n\n- Allow self-hosted Community instances to configure OIDC SSO within the global 2-user limit.\n- Enforce the free self-hosted 2-user limit consistently for registration, invites, and OIDC provisioning.\n- Clarify self-hosted licensing, Enterprise features, and SSO documentation.\n- Refresh related product copy and configuration docs.