Add the React notification route with cursor-based inbox and sent-message views, read receipts, filters, unread badges, and safe fallback links for functionality that remains in the legacy frontend.
Add student and teacher dashboard variants backed by existing APIs, retain the administrative overview for management roles, and provide responsive navigation back to legacy routes that have not migrated yet.
Add React account and user administration flows, including TOTP and SSO handling. Route /next SSO callbacks to React while preserving the existing Vue and native app behavior, and cover the routing policy with API tests.