fix: Replace hardcoded workspace data with real Supabase fetch and empty states

[Ananya-CM]

Summary

Fixed the Workspace page which was displaying
hardcoded fake developers and activity feed
that never changed regardless of real user data.

Changes Made

Only frontend/app/workspace/page.tsx was modified:

1. Removed hardcoded users array:

   • "Shrinivas", "Rahul", "Aman" (fake names)

2. Removed hardcoded activities array:

   • "Shrinivas updated UI components" (fake)
   • "Rahul fixed login bug" (fake)
   • "Aman pushed new changes" (fake)

3. Added members and activities state with
   loading state

4. Added useEffect fetching real data from Supabase:

   • profiles table → Active Developers section
   • projects table → Activity Feed section
   • Uses authenticated session for security

5. Added loading skeletons while data fetches

6. Added clean empty states:

   • "No members yet — Invite your team to get started"
   • "No workspace data yet — Create a project
     to get started"

Before

• "Shrinivas", "Rahul", "Aman" hardcoded for all users
• Fake activity feed showing same 3 items forever
• Counter always showed "3 active contributors"

After

• ✅ Real profiles fetched from Supabase
• ✅ Real project activity from Supabase
• ✅ Loading skeleton while fetching
• ✅ Clean empty states when no data exists
• ✅ Counters reflect actual data

Screenshots

Files Changed

• frontend/app/workspace/page.tsx — only file modified

Issue

Closes #254

nsoc26

[vercel]

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[github-actions]

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