* Require node 20 and record every place the version is pinned
The declared floor was >=18 while CI, Docker and both .nvmrc files had
been on 20 since the pnpm 8 to 10 migration, and transitive dependencies
now require 20.18.1. The docs had drifted further still, telling
contributors to install Node 16 and PNPM 8.
* Set the node floor to the strictest dependency and keep one checklist
undici needs >=20.18.1, so a bare >=20 advertised support for 20.0 to
20.18.0, which fail dependency engine checks. frontend/CLAUDE.md already
carried a pinning checklist, so the new entries fold into it rather than
starting a rival list in the root file.
* Keep the node floor at the major, not a patch version
engines.node states the major we support. Individual dev dependencies
can be stricter within it, and chasing those patch floors into engines
and the docs would turn every lockfile refresh into a docs change.
Dmitry VerkhoturovandGitHub
b8f6dc5f91