- Add `engines.node >=18.18` to match Next.js 15 runtime requirements.
- Align `npm run start` with the dev port (3003) for local parity; the
Docker runner sets PORT=10000 via ENV and is unaffected.
- Drop unused dependencies that are not imported anywhere in shell-docs:
`react-markdown`, `react-syntax-highlighter`, `rehype-raw`, and
`@types/react-syntax-highlighter`. These are used in showcase/shell/
but not here; removing them keeps the dependency surface honest.
- Regenerate package-lock.json to match.
Matches shell/ and shell-dashboard/ which commit their npm lockfiles to
pin standalone (non-pnpm-workspace) install closures. Ensures reproducible
Docker builds in CI.
Jordan Ritter