[BUG] terminated by signal SIGSEGV (Address boundary error)

### Preflight Checklist

- [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code

### What's Wrong?

when claude code said it updated i restared and got the following error

`fish: Job 2, '~/.local/share/claude/versions/…' terminated by signal SIGSEGV (Address boundary error)`

this bug only happened on claude code version 2.1.243, it worked fine on claude code 2.1.241

please fix this issue so i can use the latest claude code version

### What Should Happen?

Claude should launch normally

### Error Messages/Logs

```shell
~/.local/share/claude/versions/2.1.243
fish: Job 2, '~/.local/share/claude/versions/…' terminated by signal SIGSEGV (Address boundary error)
```

### Steps to Reproduce

Use claude code version 2.1.243

### Claude Model

None

### Is this a regression?

Yes, this worked in a previous version

### Last Working Version

2.1.241

### Claude Code Version

(2.1.243) fish: Job 2, 'claude --version' terminated by signal SIGSEGV (Address boundary error)

### Platform

Other

### Operating System

Other Linux

### Terminal/Shell

Other

### Additional Information

i am using the fish shell, not bash

Start by reproducing `claude --version` with version 2.1.243 in the fish shell on Linux, then compare the result with version 2.1.241. Done means Claude Code launches normally without the SIGSEGV error after updating.

索引モデルが issue の本文から書いたものです。