/voice crashes with 'CPU lacks AVX support' on Apple M1 (v2.1.83)

Description

/voice crashes with a Bun panic since updating to v2.1.83. Was working fine the previous day.

The AVX warning also appears on claude --version, but /voice is where it actually crashes.

Environment

• Claude Code version: 2.1.83
• Bun version: 1.3.11 (bundled)
• CPU: Apple M1
• OS: macOS 26.4 (Build 25E246)
• Architecture: arm64

Error output

CPU lacks AVX support. Please consider upgrading to a newer CPU.
panic(main thread): Illegal instruction at address 0x7FF816E210F9
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.3.11/m_1759ce80mgkgEuhogigD____________________A3w//Byvoo8W

Notes

• AVX is an x86 instruction set — it shouldn't be relevant on ARM/Apple Silicon at all
• The warning "CPU lacks AVX support" also appears when running claude --version, suggesting the bundled Bun binary may be the x86 variant running under Rosetta rather than a native ARM build
• /voice worked correctly the day before on the same hardware — this is a regression, likely from a Bun version bump or binary packaging change