Desktop app quits unexpectedly when Caps Lock is pressed

Description

Claude Code Desktop closes/quits when the Caps Lock key is pressed. Reproduced multiple times.

Environment

• Platform: macOS (Darwin 24.6.0)
• Claude Code Desktop version: 1.5354.0 (9a9e3d) — 2026-04-29T01:14:34.000Z

Steps to Reproduce

1. Open Claude Code Desktop (focus anywhere in the app)
2. Press the Caps Lock key
3. App window closes / app quits

Expected

Caps Lock should toggle capitalization state, not close the app.

Actual

The app window closes without prompt or error message.

Additional Context

• Reproduced multiple times with the same trigger
• Cleared a 105 MB transcript file from ~/.claude/projects/ to rule out transcript-size issues — no effect, crash still reproduces
• Total ~/.claude/projects/ size after cleanup: ~1 GB