fix(frontend): update router guard API

frontend/src/router/router.js

@@ -244,30 +244,32 @@ const router = createRouter({
 });
 
 // Navigation guards
-router.beforeEach((to, from, next) => {
+router.beforeEach((to) => {
   const authStore = useAuthStore();
 
   if (to.matched.some(record => record.meta.requiresAuth)) {
     if (!authStore.isAuthenticated) {
-      next({
+      return {
         name: 'login',
         query: { returnUrl: to.fullPath },
-      });
-    } else {
-      const requiredRoles = to.matched.flatMap(record => record.meta.roles ?? []);
-      if (requiredRoles.length > 0 && !authStore.hasAnyRole(requiredRoles)) {
-        next({ name: 'dashboard' });
-        return;
-      }
-
-      next();
+      };
     }
-  } else if (to.matched.some(record => record.meta.notAuthenticated)) {
-    if (authStore.isAuthenticated) next({ name: 'dashboard' });
-    else next();
-  } else {
-    next();
+
+    const requiredRoles = to.matched.flatMap(record => record.meta.roles ?? []);
+    if (requiredRoles.length > 0 && !authStore.hasAnyRole(requiredRoles)) {
+      return { name: 'dashboard' };
+    }
+
+    return true;
   }
+
+  if (to.matched.some(record => record.meta.notAuthenticated)) {
+    return authStore.isAuthenticated
+      ? { name: 'dashboard' }
+      : true;
+  }
+
+  return true;
 });
 
 export default router;