sloproxy

fix(gemini): simplify OpenAI chat response content and choices serialization master

- Emit plain text directly for Gemini→OpenAI chat responses when the message contains only one text part and no reasoning/tool/image content. - Replace `choices` assignment via `JoinRawArray` with `translatorcommon.SetRawArrayItems` for direct raw-array insertion.


+6 -2
1 changed file