- prod-deploy.yaml is now four visible sequential jobs (build -> deploy-main ->
deploy-bot -> verify) so the rollout stages show in the Actions UI; the
per-service rolling stays in the deploy-main log.
- prod-rollback.yaml: a separate manual workflow_dispatch. Leave target_version
blank to roll back to the previous deployed version (the host now tracks
DEPLOYED_TAG + PREVIOUS_TAG), or pick a release tag. Re-deploys an already
published image rolling + health-gated, image-only (no rebuild, no DB migration).
- prod-deploy.sh tracks the previous tag (commit_tag) for the blank-input rollback.
- Docs: ARCHITECTURE §13 + deploy/README runbook cover versioning + rollback.
Ilia Denisov