fix(deps): update dependency ai to v5

Author: renovate[bot]

frontend-demo/package.json

@@ -25,7 +25,7 @@
     "@mui/material-nextjs": "^6.1.8",
     "@remixicon/react": "^4.2.0",
     "@tanstack/react-query": "^5.74.3",
-    "ai": "^4.0.25",
+    "ai": "^5.0.0",
     "axios": "^1.7.7",
     "better-react-mathjax": "^2.3.0",
     "formik": "^2.4.6",