Refactor code structure and remove redundant sections for improved readability and maintainability

frontend/vue-app/src/router/__tests__/authGuard.spec.ts

@@ -12,7 +12,6 @@ vi.mock('@/stores/auth', () => ({
   isAuthReady: isAuthReadyMock,
   isUserLoggedIn: isUserLoggedInMock,
   isParentAuthenticated: isParentAuthenticatedMock,
-  logoutParent: vi.fn(),
   enforceParentExpiry: vi.fn(),
 }))
 

frontend/vue-app/src/router/index.ts

@@ -28,7 +28,6 @@ import {
   isUserLoggedIn,
   isParentAuthenticated,
   isAuthReady,
-  logoutParent,
   enforceParentExpiry,
 } from '../stores/auth'
 import ParentPinSetup from '@/components/auth/ParentPinSetup.vue'
@@ -304,8 +303,6 @@ router.beforeEach(async (to, from, next) => {
   if (isParentAuthenticated.value) {
     return next('/parent')
   } else {
-    // Ensure parent auth is fully cleared when redirecting away from /parent
-    logoutParent()
     return next('/child')
   }
 })