feat: 用户详情代金券管理与优惠模块修复

Co-authored-by: Cursor <cursoragent@cursor.com>

src/views/marketing/VoucherHolders.vue

@@ -423,15 +423,13 @@ const confirmUserSelection = (user) => {
   }
   
   if (selectorType.value === 'query') {
-    // 查询表单选择
-    queryParams.user_id = user.UserId
+    queryParams.user_id = user.user_id
   } else {
-    // 编辑表单选择
-    editForm.user_id = user.UserId
+    editForm.user_id = user.user_id
   }
   
   // 将选中的用户添加到 UserOptions 中（如果不存在）
-  if (!UserOptions.value.find(u => u.UserId === user.UserId)) {
+  if (!UserOptions.value.find(u => u.user_id === user.user_id)) {
     UserOptions.value.push(user)
   }
   
@@ -451,14 +449,14 @@ const clearEditUser = () => {
 
 // 获取查询用户名称
 const getQueryUserName = () => {
-  const user = UserOptions.value.find(u => u.UserId === queryParams.user_id)
-  return user ? `${user.UserName} (ID: ${user.UserId})` : `用户ID: ${queryParams.user_id}`
+  const user = UserOptions.value.find(u => u.user_id === queryParams.user_id)
+  return user ? `${user.user_name} (ID: ${user.user_id})` : `用户ID: ${queryParams.user_id}`
 }
 
 // 获取编辑用户名称
 const getEditUserName = () => {
-  const user = UserOptions.value.find(u => u.UserId === editForm.user_id)
-  return user ? `${user.UserName} (ID: ${user.UserId})` : `用户ID: ${editForm.user_id}`
+  const user = UserOptions.value.find(u => u.user_id === editForm.user_id)
+  return user ? `${user.user_name} (ID: ${user.user_id})` : `用户ID: ${editForm.user_id}`
 }
 
 // 获取代金券列表