What changed:
- Onboarding tracking: admin_app_opened on first authenticated dashboard load; event_created, branding_configured,
and invite_created on their respective actions.
- Tour replay: Settings now has an “Experience” section to replay the tour (clears tour seen flag and opens via ?tour=1).
- Empty states: Tasks, Members, and Guest Messages now include richer copy + quick actions.
- New helpers + copy: Tour storage helpers, new translations, and related UI wiring.
install prompt support and iOS “Share → Add to Home Screen” guidance. Also added a small helper + tests to decide
when/which banner variant should show, and shared copy in common.json.
