fix：修改模型dify模型保存不成功问题

src/modules/model-manage/dify/SystemSetting.vue

@@ -164,7 +164,19 @@ const handleOk = async () => {
   );
 
   const model_settings = Object.values(form.value);
-  await updateSystemModelSettingDIFYFun({ model_settings });
+  console.log(model_settings);
+  const data = model_settings.map((item) => {
+    if (!item.model || !item.provider) {
+      return {
+        model_type: item.model_type
+      };
+    } else {
+      return {
+        ...item
+      };
+    }
+  });
+  await updateSystemModelSettingDIFYFun({ model_settings: data });
 };
 const handleCancel = () => {
   emit('difyClose');