fix(onboarding): redirect to city setup after name step

Was going directly to dashboard, skipping the city selection screen.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/ui/views/setup_name_view.dart

@@ -31,7 +31,7 @@ class _SetupNameViewState extends State<SetupNameView> {
     setState(() { _loading = true; _error = null; });
     try {
       await context.read<AuthProvider>().updateName(name);
-      NavigationService.replaceTo(Flurorouter.dashboardRoute);
+      NavigationService.replaceTo(Flurorouter.setupCityRoute);
     } catch (_) {
       setState(() => _loading = false);
     }