项目管理界面显示异常优化

frontend/src/views/admin/Users.vue

@@ -16,7 +16,9 @@
             <el-tag type="danger" v-else>已禁用</el-tag>
           </template>
         </el-table-column>
-        <el-table-column prop="created_at" label="创建时间" width="200" />
+        <el-table-column prop="created_at" label="创建时间" width="200">
+          <template #default="scope">{{ displayDateTime(scope.row.created_at) }}</template>
+        </el-table-column>
         <el-table-column label="操作" width="320" fixed="right">
           <template #default="scope">
             <el-button link type="primary" size="small" @click="openEdit(scope.row)">编辑</el-button>
@@ -65,6 +67,7 @@ import type { UserInfo } from "../../types/api";
 import UserForm from "./UserForm.vue";
 import UserResetPassword from "./UserResetPassword.vue";
 import { useAuthStore } from "../../store/auth";
+import { displayDateTime } from "../../utils/display";
 
 const users = ref<UserInfo[]>([]);
 const total = ref(0);