Permission prompt doesn't support mouse interaction

[pablonification]

Problem

The permission prompt (Allow once / Allow always / Reject) only supports keyboard navigation. Users cannot hover or click on options with the mouse.

This is inconsistent with other interactive elements in the TUI like slash command selection, which supports both keyboard and mouse interaction.

Expected behavior

• Hovering over an option should highlight it
• Clicking on an option should select it

Same behavior as the slash command autocomplete menu.