get latest langgraph fixes from main

Author: ranst91

integrations/langgraph/typescript/package.json

@@ -29,8 +29,8 @@
     "rxjs": "7.8.1"
   },
   "peerDependencies": {
-    "@ag-ui/core": ">=0.0.40",
-    "@ag-ui/client": ">=0.0.40"
+    "@ag-ui/core": "0.0.40-alpha.7",
+    "@ag-ui/client": "0.0.40-alpha.7"
   },
   "devDependencies": {
     "@ag-ui/core": "workspace:*",