feat: delete the added model #503 and display an error message when the requested file fails to parse #684 (#708)

### What problem does this PR solve?

feat: delete the added model #503
feat: display an error message when the requested file fails to parse
#684

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/add-knowledge/components/knowledge-file/parsing-status-cell/index.tsx

@@ -55,7 +55,7 @@ const PopoverContent = ({ record }: IProps) => {
     {
       key: 'process_duation',
       label: t('processDuration'),
-      children: record.process_duation,
+      children: `${record.process_duation} s`,
     },
     {
       key: 'progress_msg',