Documents the clasp CLI workflow for Google Apps Script projects — login, project creation/cloning, push vs deploy, versioning, and multi-environment (dev/staging/prod) setups. Use when setting up CI/CD for an Apps Script project, publishing a new version, or switching between multiple script IDs. Framework-agnostic — applies with or without bootgs. Not for Marketplace listing and review (`apps-script-marketplace-publish`), nor for why a trigger isn't firing (`apps-script-triggers`).
