- Add docs/voyager/index.html — static Voyager page (CDN, no build)
- Add .github/workflows/docs.yml — deploys to gh-pages on merge to
  main when spec/** changes; also supports workflow_dispatch
- Add poethepoet task runner with shortcuts:
    uv run poe validate        — generate introspection JSON
    uv run poe check           — enforce S2DM constraints
    uv run poe compose         — compose single schema.graphql
    uv run poe generate        — generate all export artifacts
    uv run poe voyager         — validate + build static Voyager site
    uv run poe build-voyager   — copy site files to ./site/
    uv run poe ci-checks       — validate + check (PR gate)
    uv run poe export-*        — individual format exports
- Add package.json + package-lock.json for @graphql-inspector/cli
- Update .gitignore: track .venv/, _output/, site/