修复权限验证问题：普通用户无法访问后台管理页面

demo/frontend/src/views/Register.vue

@@ -5,7 +5,7 @@
         <el-card class="register-card">
           <template #header>
             <div class="register-header">
-              <el-icon size="32" color="#67C23A"><UserFilled /></el-icon>
+              <el-icon size="32" color="#67C23A"><User /></el-icon>
               <h2>用户注册</h2>
             </div>
           </template>
@@ -132,6 +132,18 @@ import { useRouter } from 'vue-router'
 import { useUserStore } from '@/stores/user'
 import { checkUsernameExists, checkEmailExists } from '@/api/auth'
 import { ElMessage } from 'element-plus'
+import {
+  User,
+  Lock,
+  Message,
+  Phone,
+  Calendar,
+  Location,
+  Check,
+  Close,
+  ArrowLeft,
+  ArrowRight
+} from '@element-plus/icons-vue'
 
 const router = useRouter()
 const userStore = useUserStore()