Prompt bar UI bug in v2.1.23: text disappears, lines compact

Description

After updating to Claude Code v2.1.23, the prompt bar displays incorrectly:

• The prompt bar compacts into two parallel lines with no spacing between them
• Text typed in the prompt disappears (not visible while typing)

Version

• Claude Code: v2.1.23
• Platform: macOS (Darwin 25.2.0)

Expected Behavior

Prompt bar should display as a single line with visible text input

Actual Behavior

• Prompt bar compacts into two overlapping lines
• Typed text is not visible in the input field

When Started

Immediately after updating from previous version to v2.1.23

Impact

This makes it very difficult to use the CLI as you cannot see what you're typing.