Revert "sub plan page (#885)" (#886)

This reverts commit 443ad37b6a.

packages/global/core/dataset/utils.ts

@@ -1,4 +1,4 @@
-import { TrainingModeEnum, DatasetCollectionTypeEnum } from './constants';
+import { TrainingModeEnum, DatasetCollectionTypeEnum, DatasetDataIndexTypeEnum } from './constants';
 import { getFileIcon } from '../../common/file/icon';
 import { strIsLink } from '../../common/string/tools';
 
@@ -41,6 +41,7 @@ export function getDefaultIndex(props?: { q?: string; a?: string; dataId?: strin
   const qaStr = `${q}\n${a}`.trim();
   return {
     defaultIndex: true,
+    type: a ? DatasetDataIndexTypeEnum.qa : DatasetDataIndexTypeEnum.chunk,
     text: a ? qaStr : q,
     dataId
   };