v2: use static route for VA / adaptive content

[SamyPesse]

This PR aims to use static routes for VA and adaptive content. The authentication is done in the middleware already with getPublishedContentByUrl, but now the site data from it are passed in the URL using a Rison encoded route parameter.

Since the apiToken from getPublishedContentByUrl are now stable over period of time, it should not cause cache misses.

[changeset-bot]

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Latest commit: e58b714

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[github-actions]

Summary of the deployments:

Version 1 (production)

Version	URL	Status
Latest commit	https://7e4b5b5c.gitbook-open.pages.dev	✅
PR	https://pr2998.gitbook-open.pages.dev	✅

Version 2 (experimental)

Version	URL	Status
Vercel	https://gitbook-v2-h5mshx5h0-gitbook.vercel.app	✅
Cloudflare	https://cc29a66f-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	v1	v2
GitBook	https://7e4b5b5c.gitbook-open.pages.dev/docs.gitbook.com	https://gitbook-v2-h5mshx5h0-gitbook.vercel.app/url/docs.gitbook.com
E2E	https://7e4b5b5c.gitbook-open.pages.dev/gitbook.gitbook.io/test-gitbook-open	https://gitbook-v2-h5mshx5h0-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open

[argos-ci]

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Build	Status	Details	Updated (UTC)
customers-v1 (Inspect)	✅ No changes detected	-	Mar 20, 2025, 1:53 PM
customers-v2 (Inspect)	✅ No changes detected	-	Mar 20, 2025, 1:55 PM
default (Inspect)	👍 Changes approved	2 changed	Mar 20, 2025, 1:56 PM
v2-vercel (Inspect)	✅ No changes detected	-	Mar 20, 2025, 1:58 PM