Issue: Improve error handling and user feedback for authentication failures

[Kartikey-Pathak]

Currently, when authentication or user-related API requests fail (e.g., user not found, invalid credentials, or server errors), the frontend shows a generic message like "Login failed" instead of displaying meaningful error messages returned from the backend.

This results in poor user experience and makes it difficult for users to understand what went wrong.

Current Behavior
API returns proper error responses (e.g., 404 User not found)
Frontend displays only: "Login failed"
No differentiation between error types
No user-friendly feedback mechanism

Expected Behavior
Display meaningful backend error messages (e.g., "User not found", "Invalid password")
Show proper feedback for different failure cases
Improve UX with consistent error messaging (optional: toast notifications)

Steps to Reproduce
Open Login page
Enter invalid email or password
Submit form
Observe generic error message instead of specific backend message

Type of Issue
🐛 Bug (UI/UX improvement)
📈 Enhancement

Why this matters
Improves user experience, debugging clarity, and makes authentication feedback more meaningful.

[Kartikey-Pathak]

Assign this to me please i can fix this issue

[opinder8699]

Hi @kunalverma2512 I would love to work on this issue under GSSoC'26.Please assign this issue to me

[Sujini-kudupudi]

Hi @kunalverma2512, I’d like to work on this issue under GSSoC'26. I can improve the authentication error handling by displaying meaningful backend responses and enhancing the overall user feedback UX. Please assign this issue to me.
thank you

[vaibhavmahiwal]

Hi @kunalverma2512, I would love to claim this issue under GSSoC'26!
I've reviewed the issue description and plan to handle it directly on the frontend by updating our API service integration (Axios/Fetch interceptors or form submit catch blocks) to stop hardcoding "Login failed". Instead, I will safely extract error.response.data.message from the backend payload.
I'll ensure the error component strictly respects the repository's Brutalist Design System.Please assign this to me.