Add mouse/touch support to permission prompt buttons #8992

Description

The permission prompt (for "Allow once", "Allow always", "Reject" options) currently only supports keyboard navigation (arrow keys + enter). It would be helpful to also support mouse clicks and touch input for selecting options.

Use Case

This is particularly useful for users running OpenCode in terminal emulators that support mouse/touch input, such as Termux on mobile devices.

Proposed Solution

Add onMouseOver and onMouseUp handlers to the option buttons in the Prompt component, following the existing pattern used throughout the codebase (e.g., dialog-confirm.tsx, question.tsx).

This would allow:

• Hovering over an option to highlight it
• Clicking/tapping an option to select it directly