Adding openai/codex as an API provider

[save-vibecoder]

adding openai/codex as an API provider, similar to how gemini cli is currently available.

[ryo-zi]

Yup! Waiting this feature too, very need

[genericness]

bump

[bturcotte520]

Hi There!

In order to increase visibility of product requests, we're consolidating requests on similar features and topics. Therefore, I'm going to close this Discussion, and you can follow the progress of this request here:

• API Provider Requests | Consolidated Discussion #3580

Thanks for understanding and being a valuable member of the Kilo Code Community!