fix: 修复前端页面数据加载问题

问题原因：
- request.js 响应拦截器已经提取了 res.data
- 但页面代码中还在使用 res.data.records/res.data.total
- 导致实际访问的是 undefined

修复内容：
- role.vue: res.data.records -> res.records
- menu.vue: res.data -> res
- contact.vue: res.data.records -> res.records, res.data -> res

现在页面可以正确加载数据了

fund-admin/src/views/customer/contact.vue

@@ -191,7 +191,7 @@ const rules = {
 const loadCustomerList = async () => {
   try {
     const res = await getCustomerList({ current: 1, size: 1000 })
-    customerList.value = res.data.records
+    customerList.value = res.records
   } catch (error) {
     ElMessage.error('加载客户列表失败')
   }
@@ -205,7 +205,7 @@ const loadTableData = async () => {
   
   try {
     const res = await getContactList(searchForm.customerId)
-    let contacts = res.data || []
+    let contacts = res || []
     
     // 根据姓名过滤
     if (searchForm.contactName) {

fund-admin/src/views/system/menu.vue

@@ -188,7 +188,7 @@ const buildMenuTree = (menus) => {
 const loadTableData = async () => {
   try {
     const res = await getMenuList()
-    tableData.value = buildMenuTree(res.data)
+    tableData.value = buildMenuTree(res)
   } catch (error) {
     ElMessage.error('加载数据失败')
   }

fund-admin/src/views/system/role.vue

@@ -185,8 +185,8 @@ const loadTableData = async () => {
       status: searchForm.status
     }
     const res = await getRoleList(params)
-    tableData.value = res.data.records
-    page.total = res.data.total
+    tableData.value = res.records
+    page.total = res.total
   } catch (error) {
     ElMessage.error('加载数据失败')
   }