VERSION holds MAJOR.MINOR (1.1). The build job works out the next patch
(scripts/next-version.sh, integer count) and stamps it into c2-core as
DRB_VERSION, which /health returns. The new "Tag release" job tags the
commit only after the deploy job succeeds, so a failed deploy's number is
reused. Node checkins carry `version`, stored on the node doc.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
