/voice mode: "Hold Space to record" doesn't work — space bar types a space instead

Description

When enabling voice mode with /voice, the prompt says "Hold Space to record," but pressing the space bar just types a space character. No recording is triggered.

Environment

• OS: macOS 26.3.1 (Darwin 25.3.0)
• Claude Code: v2.1.72
• Node.js: v22.22.0
• Shell: zsh

Reproduction

1. Run claude in terminal
2. Type /voice to enable voice mode
3. Press and hold the space bar
4. Space character is typed instead of recording being triggered

Additional Context

• Tested in both Terminal.app and Cursor's integrated terminal — same behavior in both
• Claude Code runs in a Node.js process — unclear if the terminal type or Node runtime affects key capture