Fold duplicated campanha access, loaders, list/filter/form shells, and scripts into shared modules; reorganize utilities by domain; stabilize e2e; and document prevention-first audit workflow so the same smells cannot creep back in.
Bookmarks the canonical list recorte beside Limpar, syncs via useSyncExternalStore, and matches active URLs with a pure href comparator so the app layout never imports the heavy URL serializer.
