refactor(guest): retire legacy guest app and move shared modules

resources/js/guest-v2/__tests__/EventLayout.test.tsx

@@ -15,17 +15,17 @@ vi.mock('../context/EventDataContext', () => ({
   useEventData: () => ({ event: null }),
 }));
 
-vi.mock('@/guest/context/EventBrandingContext', () => ({
+vi.mock('@/shared/guest/context/EventBrandingContext', () => ({
   EventBrandingProvider: ({ children }: { children: React.ReactNode }) => <>{children}</>,
 }));
 
-vi.mock('@/guest/i18n/LocaleContext', () => ({
+vi.mock('@/shared/guest/i18n/LocaleContext', () => ({
   LocaleProvider: ({ children }: { children: React.ReactNode }) => <>{children}</>,
   DEFAULT_LOCALE: 'de',
   isLocaleCode: () => true,
 }));
 
-vi.mock('@/guest/context/NotificationCenterContext', () => ({
+vi.mock('@/shared/guest/context/NotificationCenterContext', () => ({
   NotificationCenterProvider: ({ children }: { children: React.ReactNode }) => <>{children}</>,
 }));