Fix : Standardized the login , signup , and googleLogin functions in …

[prajapatideepak2370]

…authController.js to use the same JWT algorithm ( HS256 by default) and expiration settings

📌 Description

Implemented major authentication and reliability improvements across the application, including standardized JWT token generation and expiration handling, consistent MongoDB ObjectID processing, and Firebase token validation with clock-skew tolerance. Enhanced timeout and error handling by increasing Axios request limits, improving middleware error responses, and adding user-friendly timeout messages in login/signup pages. Also configured backend and frontend environment setup with .env files and verified successful database connection and frontend startup on port 5173.

🔗 Related Issue

Closes #1200

🛠 Changes Made

• Standardized JWT authentication across login, signup, and Google login.
• Fixed MongoDB ObjectID handling using .toString() for consistent token verification.
• Added 5-minute leeway for Firebase token expiration to avoid clock mismatch errors.
• Increased Axios request timeout to 60 seconds to handle server cold starts.
• Improved error messages for login, signup, and auth middleware.
• Updated frontend to show clearer timeout/loading feedback to users.

✅ Checklist

• Code runs locally
• Followed project structure
• No console errors
• Properly tested changes
• Linked the issue

🚀 Notes for Reviewers

Anything specific you want reviewed.

[prajapatideepak2370]

Fix : Standardized the login , signup , and googleLogin functions