Create a nice-looking banner when wizard starts

It could be a nice feature to add something similar to this:

<img width="1153" height="224" alt="Image" src="https://github.com/user-attachments/assets/f5c976cb-ae97-48fc-8d0d-53cef76b9af4" />

The banner should show "Hiero CLI" text but in some cool form. 
Important: this text should be visible **only** when wizard starts to not distract the user too much. 