Fix math and mermaid rendering

Author: ScriptSmith

ui/package.json

@@ -30,11 +30,14 @@
     "@mcp-ui/client": "^6.1.0",
     "@radix-ui/react-popover": "^1.1.15",
     "@streamdown/code": "^1.0.3",
+    "@streamdown/math": "^1.0.2",
+    "@streamdown/mermaid": "^1.0.2",
     "@tanstack/react-query": "^5.90.21",
     "@tanstack/react-table": "^8.21.3",
     "@tanstack/react-virtual": "^3.13.19",
     "clsx": "^2.1.1",
     "diff": "^8.0.3",
+    "katex": "^0.16.38",
     "lucide-react": "^0.555.0",
     "pyodide": "^0.29.3",
     "quickjs-emscripten-core": "^0.31.0",