Update React Flight/Next.js RCE vulnerability patches

Updated dependencies to fix Next.js CVE vulnerabilities.

The fix-react2shell-next tool automatically updated the following packages to their secure versions:
- next
- react-server-dom-webpack
- react-server-dom-parcel  
- react-server-dom-turbopack

All package.json files have been scanned and vulnerable versions have been patched to the correct fixed versions based on the official React advisory.

Co-authored-by: Vercel <vercel[bot]@users.noreply.github.com>

Author: vercel[bot]

apps/dbagent/package.json

@@ -77,7 +77,7 @@
     "langfuse-vercel": "^3.38.5",
     "litellm-api": "^0.0.3",
     "lucide-react": "^0.542.0",
-    "next": "^15.5.2",
+    "next": "15.5.7",
     "next-auth": "5.0.0-beta.30",
     "next-themes": "^0.4.6",
     "ollama": "^0.5.17",