fix(showcase): bump @ag-ui/langgraph to 0.0.36 in langgraph integrations

Carries ag-ui PR CopilotKit#1784 (skip regeneration check when command.resume is
set) into the three langgraph showcase stacks. ag-ui 0.0.35 incorrectly
ran the regenerate path on a resumed run, breaking the gen-ui-interrupt
D6 cell. 0.0.36 adds the command.resume guard.

Pins @ag-ui/langgraph 0.0.36 via npm overrides (transitive dep of
@copilotkit/runtime) in langgraph-python, langgraph-typescript, and
langgraph-fastapi, and regenerates each per-integration package-lock.json.

Author: jpr5

showcase/integrations/langgraph-fastapi/package-lock.json

@@ -50,12 +50,14 @@
     "typescript": "^5.7.0"
   },
   "overrides": {
+    "@ag-ui/langgraph": "0.0.36",
     "@copilotkit/web-inspector": {
       "@copilotkit/core": "1.59.2"
     }
   },
   "pnpm": {
     "overrides": {
+      "@ag-ui/langgraph": "0.0.36",
       "@copilotkit/web-inspector>@copilotkit/core": "1.59.2"
     }
   }

showcase/integrations/langgraph-fastapi/package.json

@@ -49,12 +49,14 @@
     "typescript": "^5.7.0"
   },
   "overrides": {
+    "@ag-ui/langgraph": "0.0.36",
     "@copilotkit/web-inspector": {
       "@copilotkit/core": "latest"
     }
   },
   "pnpm": {
     "overrides": {
+      "@ag-ui/langgraph": "0.0.36",
       "@copilotkit/web-inspector>@copilotkit/core": "latest"
     }
   }

showcase/integrations/langgraph-python/package-lock.json

@@ -56,6 +56,7 @@
     "typescript": "^5.7.0"
   },
   "overrides": {
+    "@ag-ui/langgraph": "0.0.36",
     "@copilotkit/web-inspector": {
       "@copilotkit/core": "latest"
     }