added a deactivating feature

[CipherYuvraj]

✅ My issue is assigned to me, and I have not taken up another task simultaneously.
🔁 I have pulled the latest changes from the main branch.
🧪 My code is tested and does not break existing functionality.
📚 I have added/updated documentation wherever necessary.
🧹 My code follows the project's coding standards.
✍️ My commits are clear and meaningful.
🧾 I have linked the issue this PR addresses with Closes #<issue_number>.
📌 Related Issue
Closes #99

🧠 Description
This PR implements comprehensive account deletion and deactivation functionality for DevSync, allowing users to manage their account lifecycle with proper safeguards and confirmations.

🔧 Backend Changes
Database Schema: Added isActive, deletedAt, and deactivatedAt fields to User model
API Endpoints:
DELETE /api/users/{id} - Permanently delete user account (GDPR compliant)
PATCH /api/users/{id}/deactivate - Temporarily deactivate account
PATCH /api/users/{id}/reactivate - Reactivate deactivated account
Security: Enhanced auth middleware to prevent deactivated users from accessing the platform
User Methods: Added softDelete(), deactivate(), and reactivate() methods to User model
🎨 Frontend Changes
Settings Page: Added "Danger Zone" section with account management options
AccountDangerZone Component: Clean UI with clear warnings and action buttons
ConfirmationModal Component: Reusable modal with different severity levels and type-to-confirm safety
Custom Hook: useAccountManagement for centralized account operations
User Experience:
Clear messaging for both deactivate ("disabled until reactivated") and delete ("permanently removed")
Confirmation modals with type-to-confirm for destructive actions
Loading states and proper error handling
Toast notifications for user feedback
🔒 Security Features
Users can only modify their own accounts
Deactivated accounts cannot log in until reactivated
Proper token validation and user verification
GDPR-compliant permanent data deletion
🎯 User Flow
Deactivate: User clicks → Warning modal → Type confirmation → Account disabled (can be reactivated)
Delete: User clicks → Danger modal → Type "DELETE" → Account permanently removed
Both actions automatically log out the user and redirect appropriately
✅ Type of Change
💡 Feature
🐞 Bug fix
🧹 Code cleanup/refactor
🧪 Test cases
📚 Docs update
📝 Additional Notes (Optional)
🛡️ Security Considerations
All endpoints require authentication and self-ownership verification
Deactivated users are immediately logged out and blocked from future access
Hard delete removes all user data permanently (GDPR Article 17 compliance)
🔄 Future Enhancements
Consider implementing cascade deletion for related data (projects, tasks, etc.)
Add admin reactivation capabilities if needed
Implement data export before deletion (GDPR Article 20)

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[github-actions]

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[Annanyatiwary4]

fix this and also in navbar settings section is there , integrate your settings page to it ,so it the flow could be maintained.

[Annanyatiwary4]

@CipherYuvraj is it fixed?

[CipherYuvraj]

done

[Annanyatiwary4]

@CipherYuvraj deleting/deactivate features not working.

[Annanyatiwary4]

@CipherYuvraj updates?