refactor(chat): 更新商户账户类型引用

- 将 MerchantAccount 替换为 ShopMerchantAccount
- 更新相关类型定义以匹配新的商户账户模型

src/views/user/chat-message/components/chatMessageEdit.vue

@@ -94,7 +94,7 @@
   import 'bytemd/dist/index.min.css';
   import highlight from '@bytemd/plugin-highlight-ssr';
   import 'highlight.js/styles/default.css';
-  import { MerchantAccount } from '@/api/shop/merchantAccount/model';
+  import { ShopMerchantAccount } from '@/api/shop/shopMerchantAccount/model';
   import { User } from '@/api/system/user/model';
 
   // 是否是修改
@@ -124,7 +124,7 @@
   // 表格选中数据
   const formRef = ref<FormInstance | null>(null);
   const images = ref<ItemType[]>([]);
-  const merchantAccount = ref<MerchantAccount[]>([]);
+  const merchantAccount = ref<ShopMerchantAccount[]>([]);
   const formDataBatch = ref<ChatMessage[]>([]);
 
   // 用户信息