Codex Desktop incorrectly sends Azure Image Generation request for normal text chat while Codex CLI works correctly

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

版本 26.623.141536 • 发布于 Jul 7, 2026

What subscription do you have?

azure openai

What platform is your computer?

macos

What issue are you seeing?

imagegen deployment must be provided through header:
x-ms-oai-image-generation-deploym

<img width="3360" height="1860" alt="Image" src="https://github.com/user-attachments/assets/0f33c563-75d8-4c29-8a2b-5dd3db15ec1a" />

What steps can reproduce the bug?

对话就会出现

What is the expected behavior?

_No response_

Additional information

_No response_