refactor(docs): consume the changelog surface from @uxfront/layer-docs

[alexgrozav]

What

apps/docs stops shipping its own changelog and consumes the one now owned by @uxfront/layer-docs (uxfront-com/uxfront#63).

Deleted:

• app/pages/[[lang]]/changelog/index.vue
• app/pages/[[lang]]/changelog/[slug].vue
• app/composables/useChangelogReleaseUrl.ts
• the readdirSync changelogRoutes list and the whole nitro:config hook in nuxt.config.ts

Added, in app/app.config.ts:

changelog: {
  releaseUrlTemplate: "{repo}/releases/tag/styleframe@{version}",
  description: "Everything new in Styleframe — recipes, engine improvements, and tooling, release by release.",
}

content.config.ts already declares the collection via defineDocsCollections(DOCS_SECTIONS, { sitemap: true, changelog: true }) — unchanged.

Why

The pages, the composable and the prerender workaround were all generic docs-site machinery living in a product app. The only genuinely styleframe-specific part — the styleframe@<version> release-tag convention — is now expressed as config, so nothing brand-shaped remains in the layer.

The deleted nitro:config hook enumerated content/changelog/*.md at config time because the Nitro crawler reads a version-numbered slug (/changelog/1.0.0) as a file extension and skips it. The layer now enqueues those routes with addPrerenderPath from the index page, so no filesystem read happens here. The hook's remaining locale-root seeding was identical to the layer's, so it goes too.

How verified

pnpm build:nodocs (11 tasks) then pnpm build:docs, both green, with the layer source linked in. Prerendered output diffed against the live site:

	built	live
/changelog title	Changelog - styleframe	same
/changelog/3.9.0 title	A full component library — v3.9.0 - styleframe	same
h1, badge, <time>	A full component library, v3.9.0, June 14, 2026	same
release link	…/releases/tag/styleframe@3.9.0	same
index release links	17	17
og:image	absent	present

.output/public/changelog.html plus all 17 .output/public/changelog/<version>.html present. The 1.0.0 and 2.0.0 entries keep their frontmatter releaseUrl overrides.

Gates: format:check clean, oxlint apps/docs clean, nuxt typecheck 0 errors, vitest run 3/3.

Known delta

OG images. The old pages called defineOgImage("DocsSatori", { headline: "styleframe", … }); the layer does not register nuxt-og-image, so /changelog* ships without og:image until OG support lands in the layer — same situation the header comment on app/pages/[[lang]]/docs/[section]/[...slug].vue already describes. No change needed here when it does.

Blocked on

uxfront-com/uxfront#63 must be released before this merges — it needs a @uxfront/layer-docs version carrying the changelog pages.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 1d506f5

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.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
styleframe-dev	Ready	Preview	Aug 30, 2026 9:18am
styleframe-dev-storybook	Ready	Preview	Aug 30, 2026 9:18am

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[alexgrozav]

Closing during a tracker reset: the Multica issues tracking this work were deleted or cancelled, so this PR has no live owner or definition of done.

Not a judgement on the change itself — the branch is untouched and this PR can be reopened if the work is picked up again.