- Made admin pages client-side only using dynamic imports to prevent SSR issues
- Added proper null checks in Layout component to handle guest users
- Updated AdminProtected to support render prop pattern for user data
- Fixed card-editor and card-import pages to use proper authentication flow
- Eliminated hardcoded user data that was causing build failures
- All pages now build successfully and handle null user states gracefully
- Production deployment should now work without SSR errors
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