user authentication web application

This project is a web-based user authentication system that allows users to create accounts and securely log in to the application. The system is built using Node.js and Express.js for the backend and a simple HTML/CSS user interface for the frontend.

The application provides essential authentication features such as user registration, login validation, and token generation. It includes API endpoints that handle user data, validate credentials, and ensure proper error handling for invalid inputs.

The project demonstrates how authentication systems work in modern web applications and provides a foundation for integrating authentication into larger platforms.