* build(linux): carry the pinned Node inside the AppImage so orca serve's slot works offline
Linux packaging places the pinned glibc Node at resources/node-runtime/bin/node before the
glibc-floor gate, proves it serves one PTY with the packaged daemon entry, and deb/rpm exclude
it through fpm. orca serve's orcad slot copies that Node (hash-checked) instead of downloading.
* test(serve): type the bundled Node fixture
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Co-authored-by: m4air <m4air@Mac.localdomain>
