Enforce reuse-first implementation and repository boundaries in the iPolloWork monorepo. Use whenever AI creates, edits, or refactors React/TypeScript frontend code, server routes or services, shared packages, generated-file workflows, or features spanning apps/app and apps/server. Prevent duplicate components, helpers, types, routes, and runtime files; place new code and generated artifacts in the correct project-owned directories; and audit only the current change before completion.