Implement User Login API

[delucca]

Type of Issue

Feature Request

Description

Create an API endpoint for user login. This endpoint will verify user credentials and issue an authentication token upon successful login, providing access to the system.

Additional Context

The login system should validate the user’s email and password, then issue a JWT token to allow authenticated requests. Token expiration should be handled appropriately.

Acceptance Criteria

1. User login endpoint is created.
2. User credentials are validated securely.
3. JWT tokens are generated and returned upon successful login.
4. Token expiration and error handling for invalid credentials are implemented.