Initial commit from agent-native create

app/entry.client.tsx

@@ -0,0 +1,19 @@
+// Import only the tiny URL-helper module, not the full client barrel.
+// This keeps the ~650-700 KB gzip chat stack off the static import closure
+// of the client entry point so it can't block the first page parse.
+import { appBasePath } from "@agent-native/core/client/api-path";
+import { hydrateRoot } from "react-dom/client";
+import { HydratedRouter } from "react-router/dom";
+
+const basePath = appBasePath();
+const pathname = window.location.pathname;
+const routerBasePath =
+  basePath && (pathname === basePath || pathname.startsWith(`${basePath}/`))
+    ? basePath
+    : "";
+const context = (
+  window as Window & { __reactRouterContext?: { basename?: string } }
+).__reactRouterContext;
+if (context) context.basename = routerBasePath;
+
+hydrateRoot(document, <HydratedRouter />);