frontend-build-timing-audit

Detects and diagnoses chunk-evaluation timing bugs in the Vite/rolldown production build of react-ui (works-in-dev / broken-in-build i18n regressions, missing UI labels, module-scope t() anti-patterns). Use when editing react-ui, ui-components, shared, vite.config.ts, package.json sideEffects, or i18n setup; or when a user reports blank labels in build/docker/staging/prod.