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/package.json

@@ -3,7 +3,7 @@
   "author": "zhaofengchao <13723060510@163.com>",
   "scripts": {
     "build": "umi build",
-    "dev": "cross-env PORT=9000 umi dev",
+    "dev": "cross-env PORT=9200 umi dev",
     "postinstall": "umi setup",
     "lint": "umi lint --eslint-only",
     "setup": "umi setup",
@@ -13,6 +13,7 @@
     "@ant-design/icons": "^5.2.6",
     "@ant-design/pro-components": "^2.6.46",
     "@ant-design/pro-layout": "^7.17.16",
+    "@js-preview/excel": "^1.7.8",
     "ahooks": "^3.7.10",
     "antd": "^5.12.7",
     "axios": "^1.6.3",
@@ -25,6 +26,7 @@
     "rc-tween-one": "^3.0.6",
     "react-chat-elements": "^12.0.13",
     "react-copy-to-clipboard": "^5.1.0",
+    "react-file-viewer": "^1.2.1",
     "react-i18next": "^14.0.0",
     "react-infinite-scroll-component": "^6.1.0",
     "react-markdown": "^9.0.1",