feat(admin): replace mock admin data with live API integrations

[shogun444]

📋 Description

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🛠 Changes Implementedac

• List key changes made in this PR.
• Mention any dependencies or external updates.

✅ How to Test

1. Setup: Steps to set up the environment.
2. Run Tests: Instructions to verify the changes.
3. Expected Output: What should happen if the changes work correctly.

🔍 Screenshots (if applicable)

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🚀 Checklist

• Code follows project style guidelines.
• Changes are tested and verified.
• Documentation is updated (if needed).

🔗 Related Issues

• Closes [Wave 200pts] Feature: Replace all lib/admin-mock-data.ts usage in admin panel with real API calls — all 4 backend admin routes confirmed #175

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[portableDD]

@shogun444 please fix ci error

[shogun444]

@portableDD sorry for this.
fixing please wait.

could you check please?