Unified API response json schema (#3170)

### What problem does this PR solve?

Unified API response json schema

### Type of change

- [x] Refactoring

web/src/pages/file-manager/hooks.ts

@@ -141,8 +141,8 @@ export const useHandleDeleteFile = (
   const handleRemoveFile = () => {
     showDeleteConfirm({
       onOk: async () => {
-        const retcode = await removeDocument({ fileIds, parentId });
-        if (retcode === 0) {
+        const code = await removeDocument({ fileIds, parentId });
+        if (code === 0) {
           setSelectedRowKeys([]);
         }
         return;

web/src/pages/file-manager/move-file-modal/async-tree-select.tsx

@@ -22,7 +22,7 @@ const AsyncTreeSelect = ({ value, onChange }: IProps) => {
   const onLoadData: TreeSelectProps['loadData'] = useCallback(
     async ({ id }) => {
       const ret = await fetchList(id);
-      if (ret.retcode === 0) {
+      if (ret.code === 0) {
         setTreeData((tree) => {
           return tree.concat(
             ret.data.files