feat: upgrade @mcp-ui/client package and improve UI message handling (#4164)

ui/desktop/package.json

@@ -41,7 +41,7 @@
   "dependencies": {
     "@ai-sdk/openai": "^2.0.14",
     "@ai-sdk/ui-utils": "^1.2.11",
-    "@mcp-ui/client": "~5.6.2",
+    "@mcp-ui/client": "^5.9.0",
     "@radix-ui/react-accordion": "^1.2.12",
     "@radix-ui/react-avatar": "^1.1.10",
     "@radix-ui/react-dialog": "^1.1.15",
@@ -140,6 +140,10 @@
   },
   "keywords": [],
   "license": "Apache-2.0",
+  "overrides": {
+    "react": "^19.1.1",
+    "react-dom": "^19.1.1"
+  },
   "lint-staged": {
     "src/**/*.{ts,tsx}": [
       "bash -c 'npm run typecheck'",