docs: host the dev devframes in Nuxt DevTools v4

[antfubot]

The docs now dogfood Nuxt DevTools v4 in development, in place of the @devframes/nuxt/hub dock from #437. DevTools v4 runs on Vite DevTools, which is itself a devframe hub. It hosts the a11y and og devframes, so the page has one dock. With the workspace overrides, DevTools v4 runs on the local devframe packages.

• A pnpm override replaces the DevTools v3 that Nuxt bundles with @nuxt/devtools@^4.0.0-beta.3. Only docs and the @devframes/nuxt tests install Nuxt.
• An inline dev-only module installs the two devframes through onDevtoolsReady. The imports are lazy, so docs:build still needs no built workspace packages.
• pnpm docs now builds all of packages/* and plugins/* first. DevTools v4 links to hub, hub-ui, terminals, inspect and more, and turbo cannot see those links from the docs package.
• The dev config sets nitro.noExternals: false. DevTools v4 sets noExternals to an array when it is unset. Nitro 2 reads that as "inline everything", and the dev server then fails on playwright-core (from nuxt-og-image). This works around an upstream bug.

Created with the help of an agent.

[vercel]

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Project	Deployment	Actions	Updated
devframe	Error		Oct 6, 2026 4:50am UTC

[github-actions]

👁️‍🗨️ Review this pull request with grouped, summarized diffs at:
👉 https://pulls.review/gh/devframes/devframe/439?from=github-actions[bot]

raw result

💭 analyzed by vercel-ai-gateway/anthropic/claude-sonnet-5
🕰️ 2026-10-06 04:49 UTC
🔗 head 14b472c
🤖 automated by pulls.review

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    "overallSummary": "This PR replaces the custom `@devframes/nuxt/hub` dock used in the docs' dev server with Nuxt DevTools v4 itself (which runs on Vite DevTools, a devframe hub), so the docs dogfood the real DevTools integration. It bundles a pnpm override/catalog entry for DevTools v4, a lazy dev-only module that installs the a11y and og devframes, build-script and workaround tweaks needed to make this work with the monorepo and an upstream Nitro bug, plus small cleanups to dependencies and knip config.",
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          "docs/nuxt.config.ts",
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          "pnpm-workspace.yaml"
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