feat: support math rendering with KaTeX

package.json

@@ -67,6 +67,7 @@
     "fuse.js": "^7.0.0",
     "gray-matter": "^4.0.3",
     "jsonwebtoken": "^9.0.2",
+    "katex": "^0.16.25",
     "lucide-react": "^0.515.0",
     "mime-types": "^3.0.1",
     "multer": "^2.0.1",
@@ -77,7 +78,9 @@
     "react-dropzone": "^14.2.3",
     "react-markdown": "^10.1.0",
     "react-router-dom": "^6.8.1",
+    "rehype-katex": "^7.0.1",
     "remark-gfm": "^4.0.0",
+    "remark-math": "^6.0.0",
     "sqlite": "^5.1.1",
     "sqlite3": "^5.1.7",
     "tailwind-merge": "^3.3.1",