feat: support integrations inside reusable content blocks

[Antoine-C]

No description provided.

[linear-code]

RND-9912

[changeset-bot]

⚠️ No Changeset found

Latest commit: 003c9e2

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-v2-3v4xvt4yw-gitbook.vercel.app	✅
Cloudflare	https://2fe611a5-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	2v	2c
GitBook	https://gitbook-v2-3v4xvt4yw-gitbook.vercel.app/url/gitbook.com/docs	https://2fe611a5-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://gitbook-v2-3v4xvt4yw-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://2fe611a5-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

[argos-ci]

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Build	Status	Details	Updated (UTC)
customers-v2-cloudflare (Inspect)	👍 Changes approved	29 changed	May 19, 2026, 8:59 AM
customers-v2-vercel (Inspect)	👍 Changes approved	10 changed	May 19, 2026, 8:59 AM
v2-cloudflare (Inspect)	👍 Changes approved	27 changed	May 19, 2026, 9:06 AM
v2-vercel (Inspect)	👍 Changes approved	7 changed	May 19, 2026, 9:03 AM