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/excel/index.tsx

@@ -0,0 +1,35 @@
+import jsPreviewExcel from '@js-preview/excel';
+import '@js-preview/excel/lib/index.css';
+import { useEffect } from 'react';
+
+const Excel = ({ filePath }: { filePath: string }) => {
+  const fetchDocument = async () => {
+    const myExcelPreviewer = jsPreviewExcel.init(
+      document.getElementById('excel'),
+    );
+    const jsonFile = new XMLHttpRequest();
+    jsonFile.open('GET', filePath, true);
+    jsonFile.send();
+    jsonFile.responseType = 'arraybuffer';
+    jsonFile.onreadystatechange = () => {
+      if (jsonFile.readyState === 4 && jsonFile.status === 200) {
+        myExcelPreviewer
+          .preview(jsonFile.response)
+          .then((res: any) => {
+            console.log('succeed');
+          })
+          .catch((e) => {
+            console.log('failed', e);
+          });
+      }
+    };
+  };
+
+  useEffect(() => {
+    fetchDocument();
+  }, []);
+
+  return <div id="excel" style={{ height: '100%' }}></div>;
+};
+
+export default Excel;

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

@@ -0,0 +1,8 @@
+.viewerWrapper {
+  width: 100%;
+  :global {
+    .pdf-canvas {
+      text-align: center;
+    }
+  }
+}

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

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+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;