Update app and tooling

node_modules/@vercel/remix-builder/defaults/server-react-router.mjs

@@ -0,0 +1,10 @@
+import { createRequestHandler } from 'react-router';
+import * as build_ from 'virtual:react-router/server-build';
+const build = build_.default || build_;
+export default typeof build === 'function'
+  ? // A custom server entrypoint is expected to export
+    // a Web API-compatible handler function
+    build
+  : // Otherwise, assume the default export is
+    // the React Router app manifest
+    createRequestHandler(build);