feat(tui): add mouse hover and click support to permission prompt

[pablonification]

Adds mouse interaction support to the permission prompt (Allow once / Allow always / Reject) for consistency with other interactive elements like slash command selection.

Previously, users could only navigate permission options using keyboard (arrow keys + enter). This makes it inconsistent with other UI elements that support mouse interaction.

• Add onMouseOver handler to highlight option on hover
• Add onMouseUp handler to select option on click

Follows the same pattern used in autocomplete.tsx for slash command selection.

Fixes #7966

[github-actions[bot]]

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No duplicate PRs found