scripts/ ships, so a new file under scripts/lib/ moves every install-tree
golden. The remote runner caught this as 26 failures across all 19 runtimes.
My fault in the dispatch: I limited the implementation's verification to
build:lib and lint:ci and left regen:derived out. Both of those passed, which
is precisely why a green local gate is not a substitute for the runner — the
goldens are only exercised there.
One line per golden: scripts/lib/ndjson-reporter.cjs joining the shipped tree.
Refs #4012
11c24ce973