= User Registration and Login = 

=== Actors ===
Guest (non-logged in user)

=== Steps ===
A guest (new user) can create an account and log in to the application securely. 

1. The guest is presented with a home page where they have the option to register.
2. The user provides their username, email, password, contact info. 
3. After successful registration, the user can access their account and perform further actions.

{{{

INSERT INTO app_user (username , email, password, contact_details) 
VALUES ('user1', 'user1@example.com', 'password123', '123-456-7890');
}}}