Scaffolds real nx (monorepo + standalone) and angular-cli workspaces from the
locally published CLI, runs the generators, runs healthcheck, consumes a
generated component, and builds - covering library/entrypoint x
buildable/non-buildable plus an all-components cell. Runs each cell on its own
runner via a dedicated workflow with a required result check, and stays cheap on
unrelated PRs via a git-diff gate and an in-runner affected check. Adds a
`pnpm smoke` convenience script.
Ashley Hunter