- Map copy, chart-line-up, check-circle, chat-circle, lock-key, sign-in/out,
  pencil, pencil-simple, house, list, credit-card, bell, cloud-arrow-up,
  package, gear, home, login, logout, edit, message, box to real VMK icon keys.
- Use Symbol.for for toastKey so builds with multiple bundles resolve the same key.
- Add globalProperties fallback in useToast/GnToastProvider for inline createApp demos.