fix: backend admin page logic was broken

[ntindle]

We're building out admin utilities so we need to bring back the /admin route with RBAC. This PR goes through re-enabling that to work with the latest changes

Changes 🏗️

• Adds back removed logic
• Refactors the role checks to fix minor bug for admin page and more importantly clarify
• Updates routes to the latest

Checklist 📋

For code changes:

• [x] I have clearly listed my changes in the PR description
• [x] I have made a test plan
• [x] I have tested my changes according to the test plan:
  • [x] Test with admin and authenticated user roles
  • [x] Test with logged out user role
  • [x] For the above check the all the existing routes + new ones in the middleware.ts

[qodo-merge-pro[bot]]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Duplicate Route The '/onboarding' route appears twice in the PROTECTED_PAGES array (lines 8 and 12), which could cause confusion or unexpected behavior in route protection logic. ```typescript "/onboarding", "/profile", "/library", "/monitoring", "/onboarding", ``` Improper Server Action The 'use server' directive is placed after a console.log statement, which is incorrect. It should be at the top of the function to properly mark it as a server action. ```typescript console.log("withRoleAccess called:", allowedRoles); ("use server"); ```

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Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success	❗ 3 occurences introduced 🎯 9 occurences resolved	View Check ↗
Python	✅ Success		View Check ↗

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