fix(knowledge): 优化多文件上传体验

service-web/client/src/pages/ai/knowledge/DataImport.tsx

@@ -50,6 +50,7 @@ const DataImport: React.FC = () => {
                 {
                   body: [
                     {
+                      id: 'a5219cc7-72dd-4199-9eeb-61305fe41075',
                       type: 'form',
                       wrapWithPanel: false,
                       actions: [],
@@ -93,6 +94,7 @@ const DataImport: React.FC = () => {
                         {
                           visibleOn: 'type === \'text\'',
                           type: 'editor',
+                          required: true,
                           label: '数据内容',
                           name: 'content',
                           language: 'plaintext',
@@ -104,6 +106,7 @@ const DataImport: React.FC = () => {
                         {
                           visibleOn: 'type === \'file\'',
                           type: 'input-file',
+                          required: true,
                           name: 'files',
                           label: '数据文件',
                           autoUpload: false,
@@ -144,9 +147,14 @@ const DataImport: React.FC = () => {
                           type: 'button-toolbar',
                           buttons: [
                             {
-                              type: 'action',
+                              type: 'reset',
+                              label: '重置'
+                            },
+                            {
+                              type: 'submit',
                               label: '预览',
                               actionType: 'ajax',
+                              level: 'secondary',
                               api: {
                                 method: 'post',
                                 url: 'http://127.0.0.1:8080/knowledge/preview_text',