Implement POST /users Endpoint for creating a new user.

[Lapotor]

Description:

This task involves adding functionality to the Laravel project to handle the creation of a new user through the POST /users endpoint. The endpoint should be designed to receive a JSON payload containing user information, validate it, and persist the new user record in the database.

Tasks:

• Create a route for the POST /users endpoint in the routes file.
• Develop a controller method to handle the creation of a new user.
• Validate the incoming JSON payload for required fields and data types.
• Implement logic to securely hash and store the user's password.
• Integrate error handling and return appropriate HTTP responses for success and failure cases.
• Write unit tests to verify the functionality of the POST /users endpoint.
• Verify that the endpoint adheres to any authentication or authorization requirements specified in the project.

Acceptance Criteria:

• The POST /users endpoint should be functional and able to create a new user when provided with valid input.
• Invalid input or missing fields should result in appropriate error responses.
• Unit tests should pass, covering various scenarios including edge cases.