Support expand-all options for OpenAPI

[nolannbiron]

No description provided.

[linear]

RND-9922 Add support for `expandAllResponses` and `expandAllModelSections` as OpenAPI extensions

[changeset-bot]

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Latest commit: c903dd0

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[github-actions]

Summary of the deployments:

Version	URL	Status
Vercel	https://gitbook-v2-pbyidphgc-gitbook.vercel.app	✅
Cloudflare	https://b4d1360d-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	2v	2c
GitBook	https://gitbook-v2-pbyidphgc-gitbook.vercel.app/url/gitbook.com/docs	https://b4d1360d-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://gitbook-v2-pbyidphgc-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://b4d1360d-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

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Build	Status	Details	Updated (UTC)
customers-v2-cloudflare (Inspect)	⚠️ Changes detected (Review)	6 changed	Mar 16, 2026, 10:31 AM
customers-v2-vercel (Inspect)	⚠️ Changes detected (Review)	6 changed	Mar 16, 2026, 10:30 AM
v2-cloudflare (Inspect)	✅ No changes detected	-	Mar 16, 2026, 10:36 AM
v2-vercel (Inspect)	⚠️ Changes detected (Review)	3 changed, 1 removed, 1 failure	Mar 16, 2026, 10:34 AM