Spec Sync [Always Open]

[64bit]

This issue will be open for syncing upstream spec on rolling basis.

Each PR scope to sync spec is the diff from old and new openapi.documented.yml

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Use https://github.com/64bit/async-openai/blob/main/AGENTS.md

[Madoshakalaka]

moderation param needs to be added to CreateImageRequest
and qulity parameter needs to be updated to support "high"/"medium"/"low" for gpt-image-1

https://platform.openai.com/docs/api-reference/images/create#images-create-moderation

https://platform.openai.com/docs/api-reference/images