Remove Node.js, Docker CLI, buildx, skopeo, gnupg, lsb-release, and
xz-utils from the job execution image — all build tools now live inside
Dagger containers. Add tzdata (for TZ env var support) and flyctl.
Remove "Ensure Dagger CLI" bootstrap steps from both workflows and the
"Install flyctl" step from build-blumeops. Set TZ=America/Los_Angeles
in the runner configmap so all job containers inherit it.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
