chore: import upstream snapshot with attribution

examples/integrations/langgraph-python/next.config.ts

@@ -0,0 +1,25 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  output: "standalone",
+  serverExternalPackages: ["@copilotkit/runtime"],
+  env: {
+    // The public Threads UI flag is DERIVED from the server-side license token.
+    // Set COPILOTKIT_LICENSE_TOKEN (only) to enable Threads — do not set this flag
+    // directly. NOTE: NEXT_PUBLIC_* resolves at BUILD time while the runtime reads
+    // the token per-request, so the UI gate and runtime agree only when the token is
+    // present at build time (the standard `next dev` / host-build flow). For a
+    // standalone/Docker image built without the token and injected at runtime, set
+    // COPILOTKIT_LICENSE_TOKEN at build time too (or gate the UI at runtime) so the
+    // baked flag reflects it.
+    NEXT_PUBLIC_COPILOTKIT_THREADS_ENABLED: process.env.COPILOTKIT_LICENSE_TOKEN
+      ? "true"
+      : "false",
+  },
+  typescript: {
+    // Docker route override uses HttpAgent which has a type mismatch with CopilotRuntime
+    ignoreBuildErrors: true,
+  },
+};
+
+export default nextConfig;