docs(befter): bootstrap docs app

[farming-labs-docs]

Bootstraps the docs app for farming-labs/befter and checks in docs.json.

Framework: managed
Docs root: .docs/site

Reference: https://docs.farming-labs.dev
Generated by Docs Cloud.

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Summary by cubic

Bootstrap a managed docs app for @farming-labs/befter using Next.js and our theme. Adds docs.json and a content sync to publish and preview docs via Docs Cloud.

• New Features
  • Adds .docs/site Next.js runtime with @farming-labs/next and @farming-labs/theme (colorful), global layout, and a simple landing page.
  • Introduces docs.json (frameworkless + Next.js runtime) with Cloud preview enabled and draft-pr publish mode.
  • Adds sync-managed-content.mjs to mirror docs/ (and api-reference/) into app/docs, copy static assets, and normalize code fences.
  • Seeds authored pages: docs/index.mdx, docs/installation.mdx, docs/quickstart.mdx with ordering via .docs/site/docs.config.tsx.
  • Updates pnpm-workspace.yaml to include .docs/site for local dev and builds.

^{Written for commit d72b629. Summary will update on new commits. Review in cubic}

[farming-labs-docs]

Docs preview is ready.

Preview: https://docs-cloud-farming-labs-befter.farming-labs.dev
Status: ready

Generated by Docs Cloud.