[TESTING] - Integrate Supertest for Testing user Routes

[rishyym0927]

🔍 What Is the Testing Issue?

We need to add integration tests for the user routes using Supertest. This will help ensure the API endpoints are working as expected and provide better stability for our backend

🔬 Expected Test Behavior

The tests must cover both success and failure cases for each route.
Run the tests using:

[tarun824]

Can i work on this @harsh432004 , @KGupta2601 and @kashikaga