- Create secure server-side API endpoints for course data, marks, exercises, newsfeeds, submissions, and organization management
- Implement role-based permission checking using checkUserCoursePermissions utility
- Move all client-side Supabase calls to authenticated server endpoints in /api/courses/ and /api/org/
- Add proper authentication and authorization middleware via hooks.server.ts
- Update service functions to use getAccessToken() for API authentication
- Ensure data filtering based on user roles (students only see their own data)
- Maintain backward compatibility with existing component interfaces