Explain the interaction between the Use Case and the Presenter.

The Use Case calls an Output Port interface, which the Presenter implements to handle the response formatting.

In the original Uncle Bob diagram, the Use Case doesn't return a value to the Controller. Instead, it sends the result to an 'Output Boundary' (Interface). The Presenter implements this interface. This allows the Use Case to trigger different presentation logic (Success vs. Error) without knowing the UI implementation.