feat(SPA): users page and invite modal

features/nuxt_ui_shell_foundation.qa.md

@@ -41,7 +41,7 @@ Mock `useApi` / the `/v1/auth/me` call per case; no real backend, no httptest se
 13. **AuthShell notice/footer slots** — mount AuthShell with notice and footer slot content; assert
     both render outside/above the card content as specified.
 14. **DashboardShell nav + aria-current** — mount DashboardShell with current route /article; assert
-    3 links (Home→/home, Articles→/article, Integration→/integration), and only the Articles link
+    4 links in order (Home→/home, Articles→/article, Users→/users, Integration→/integration), and only the Articles link
     has aria-current="page".
 15. **DashboardShell offline banner** — mock navigator.onLine false, mount DashboardShell; assert
     the offline banner is visible; set navigator.onLine true and dispatch the 'online' event; assert