Codex use UTF-8 BOM by default and change Chinese to unreadable nonsenese

What version of the Codex App are you using (From “About Codex” dialog)?

latest

What subscription do you have?

plus

What platform is your computer?

windows, wsl

What issue are you seeing?

just let codex or gpt know, please use UTF-8 with no BOM by default.

What steps can reproduce the bug?

let codex do some chinese work and you will see. May other utf-8 language have this issue.

What is the expected behavior?

just let codex or gpt know, please use UTF-8 with no BOM by default. And when using command like get-content, should use utf-8 for non-english language.

Additional information

<img width="726" height="1020" alt="Image" src="https://github.com/user-attachments/assets/966e701a-2444-4b4b-bc75-50ce23660b58" />

like this