feat: support DeepSeek (#667)

### What problem does this PR solve?

#666 
feat: support DeepSeek
feat: preview word and excel

### Type of change


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

web/src/pages/document-viewer/index.tsx

@@ -0,0 +1,28 @@
+import { api_host } from '@/utils/api';
+import FileViewer from 'react-file-viewer';
+import { useParams, useSearchParams } from 'umi';
+import Excel from './excel';
+
+import styles from './index.less';
+
+const DocumentViewer = () => {
+  const { id: documentId } = useParams();
+  const api = `${api_host}/file/get/${documentId}`;
+  const [currentQueryParameters] = useSearchParams();
+  const ext = currentQueryParameters.get('ext');
+
+  const onError = (e: any) => {
+    console.error(e, 'error in file-viewer');
+  };
+
+  return (
+    <section className={styles.viewerWrapper}>
+      {ext === 'xlsx' && <Excel filePath={api}></Excel>}
+      {ext !== 'xlsx' && (
+        <FileViewer fileType={ext} filePath={api} onError={onError} />
+      )}
+    </section>
+  );
+};
+
+export default DocumentViewer;