Minimal Vite + React + TS + Tailwind app with a typed-props Button component (the future react-docgen-typescript scan target), landed at fixtures/ outside the pnpm workspace and turbo graph. Its dependencies exist on paper only — the runner installs them after cloning (story 04); no lockfile, never pnpm-installed here. Ignore surfaces follow the docs/product/reference precedent: fallow, root ESLint, prettier, and the coverage:diff ALLOWED_GLOBS all skip fixtures/**. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK