Problem

When using CLI::UI::Prompt.ask with options that contain OSC 8 hyperlinks (created via CLI::UI.link), the interactive options display would become corrupted when navigating between options. Lines would appear duplicated or misaligned.

Cause

The calculate_option_line_lengths method was using string length (.length) to determine how many terminal lines each option would occupy. However, OSC 8 hyperlinks contain ~50 invisible escape sequence characters that don't contribute to display width. This caused the line count to be significantly overestimated.

For example, at terminal width 40:

• A link option displaying "Link A" has a string length of ~60 characters
• Using .length: 60 / 40 = 2 lines (incorrect)
• Using printing_width: 15 / 40 = 1 line (correct)

The incorrect line count caused reset_position to move the cursor too far, resulting in visual corruption during redraws.

Solution

Changed line length calculation to use CLI::UI::ANSI.printing_width, which correctly strips ANSI escape sequences (including OSC 8 hyperlinks) before calculating display width.

Testing

Added a regression test that:

• Creates a multi-select prompt with link options at a narrow terminal width (40)
• Navigates between options
• Verifies the correct number of cursor-up sequences (14 with fix, 23 without)