Plugin marketplace crashes with Bun panic on Windows ARM64

Environment

• Claude Code version: 2.1.47
• OS: Windows 11 ARM64 (Home China, 10.0.22631)
• Runtime: Bun v1.3.10 (1423d3c8) Windows arm64
• CPU: neon fp aes crc32 atomics
• RAM: 16.56GB

Description

The /plugin marketplace feature crashes with a Bun panic (incorrect alignment) on Windows ARM64. This appears to happen when Claude Code tries to spawn git as a child process (e.g., cloning a marketplace repo).

Steps to reproduce

1. Install Claude Code via winget on Windows 11 ARM64
2. Install Git for Windows (ARM64 build via winget)
3. Run claude and use /plugin
4. Navigate to Marketplaces → + Add Marketplace
5. Enter marketplace URL and confirm

Expected behavior

Marketplace repo is cloned and plugins are listed.

Actual behavior

Claude Code crashes with:

Bun v1.3.10 (1423d3c8) Windows arm64
panic(thread 17248): incorrect alignment
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

Crash report link: https://bun.report/1.3.10/W_11423d3cmgEuhogCwmzrfwl0uiBgyvBw32CwmvBo7xB44wCwvhgmCw236lC4i16lCg6xjkBgsjufCYKERNEL32.DLLgtxECSntdll.dll45tdA0eNrLzEvOLypKTS5RSMzJTM/LTc0rAQBMcwep

Additional context

• The official marketplace (claude-plugins-official) does not appear pre-configured on this device, unlike other platforms.
• Initially /plugin showed "Git is required to install marketplaces" even though git was installed — this was due to a PATH issue (winget-installed Git for Windows ARM64 only adds clangarm64\bin to PATH, not Git\cmd). After manually adding C:\Program Files\Git\cmd to PATH, the git detection works, but adding a marketplace triggers the Bun crash.
• The crash is reproducible — it happened multiple times across device restarts.
• This is likely a Bun issue with spawning child processes on Windows ARM64 (see spawn(22) in the crash features).