feat(admin): 为用户管理页面添加分页功能

offer_frontend/src/views/admin/UserManageView.vue

@@ -4,7 +4,7 @@
       <h2>用户管理</h2>
       <el-button type="primary" @click="openDialog()">新增管理员</el-button>
     </div>
-    <el-table :data="users" border>
+    <el-table :data="users" v-loading="loading" border>
       <el-table-column prop="username" label="用户名" />
       <el-table-column prop="email" label="邮箱" />
       <el-table-column label="角色">
@@ -24,6 +24,15 @@
         <template #default="{ row }"><el-button size="small" @click="openDialog(row)">编辑</el-button></template>
       </el-table-column>
     </el-table>
+    <div style="margin-top: 16px; text-align: right;">
+      <el-pagination
+        v-model:current-page="currentPage"
+        :page-size="pageSize"
+        :total="total"
+        @current-change="handlePageChange"
+        layout="total, prev, pager, next, jumper"
+      />
+    </div>
 
     <el-dialog v-model="dialogVisible" :title="editing ? '编辑用户' : '新增管理员'" width="480px">
       <el-form :model="form" label-width="90px">
@@ -62,11 +71,31 @@ const orgs = ref([])
 const dialogVisible = ref(false)
 const editing = ref(null)
 const saving = ref(false)
+const loading = ref(false)
+const currentPage = ref(1)
+const pageSize = ref(20)
+const total = ref(0)
 const form = reactive({ username: '', email: '', phone: '', role: 'admin', organization: null, password: '', is_active: true })
 
-const fetchUsers = async () => { const { data } = await client.get('/auth/users/'); users.value = data.results || data }
+const fetchUsers = async (page = 1) => {
+  loading.value = true
+  try {
+    const { data } = await client.get('/auth/users/', { params: { page } })
+    users.value = data.results
+    total.value = data.count
+    currentPage.value = page
+  } catch (error) {
+    ElMessage.error('加载用户列表失败，请重试')
+  } finally {
+    loading.value = false
+  }
+}
 const fetchOrgs = async () => { const { data } = await manageOrganizations(); orgs.value = data.results }
 
+function handlePageChange(newPage) {
+  fetchUsers(newPage)
+}
+
 function openDialog(user = null) {
   editing.value = user
   if (user) Object.assign(form, user)
@@ -81,7 +110,7 @@ async function save() {
     else await client.post('/auth/users/', form)
     ElMessage.success('保存成功')
     dialogVisible.value = false
-    fetchUsers()
+    fetchUsers(1)
   } catch { ElMessage.error('保存失败') } finally { saving.value = false }
 }
 onMounted(() => { fetchUsers(); fetchOrgs() })