Permission Prompt Infrastructure

What: Permission prompts now support optional subtitles for displaying additional context.

Details:

• New subtitle parameter available in permission prompt components
• Subtitle displays next to title in a row layout with truncation support
• Currently unused but provides foundation for future enhancements (e.g., showing file paths)
• Evidence: Component rz() with subtitle at line 422454, wrapper function fO() with subtitle parameter at line 422836