Chrome native host crashes on Windows - Bun internal assertion failure

Bug Description

claude --chrome-native-host crashes immediately on startup with a Bun internal assertion failure. The Chrome extension cannot communicate with Claude CLI because the named pipe process dies.

Environment

• Claude Code version: 2.1.29
• OS: Windows 11
• Bun: v1.3.5

Steps to Reproduce

1. Install Claude Chrome extension
2. Run claude --chrome-native-host
3. Process creates pipe \.\pipe\claude-mcp-browser-bridge-<user> then crashes

Error Output

[Claude Chrome Native Host] Initializing...
[Claude Chrome Native Host] Creating socket listener: \.\pipe\claude-mcp-browser-bridge-sbor
panic(main thread): Internal assertion failure
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

Crash report: https://bun.report/1.3.5/e_11e86cebEugggC++08F+mvBoxhkf0389e__0shkwCA0eNrzzCtJLcpLzFFILC5OLSrJzM9TSEvMzCktSgUAiSkKPg

Additional Context

• The native host .bat wrapper exists at ~/.claude/chrome/chrome-native-host.bat
• No native messaging host registry entries exist in HKCU or HKLM
• Chrome is running and the extension is installed and enabled