[BUG] response with japanese during conversaion with korean

Preflight Checklist

• [x] I have searched existing issues 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?

During working on image processing code, It response with japanese
There's directive that claude should response with korean.

What Should Happen?

Claude should response with korean

Error Messages/Logs

● 失礼しました。修正を取り消します。テンプレートが白色アイコン+透過なら、アルファ合成後は「白アイコン on 黒背景」となり、反転は不要です。

  現在の問題を整理します。出력 이미지와 신뢰도를 먼저 확인합니다.

  Read 1 file (ctrl+o to expand)

● 신뢰도 범위가 실제 노드(0.50~0.88)와 오탐 노드(0.44~0.65)에서 겹쳐 임계값으로는 분리가 안 됩니다. 실제 노드 ROI와 오탐 ROI를 비교해서 차이를 진단합니다.

Steps to Reproduce

<img width="1649" height="971" alt="Image" src="https://github.com/user-attachments/assets/54a812ec-99f2-4ed5-9074-fe08365925d2" />

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.114 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_