attempted upgrade

src/app/router.tsx

@@ -5,7 +5,7 @@ import { routeTree } from "./routeTree.gen";
 import { DefaultCatchBoundary } from "../components/DefaultCatchBoundary";
 import { defaultHeaderConfig } from "@/features/core/hooks/use-router-config";
 
-export function createRouter() {
+export function getRouter() {
   const queryClient = new QueryClient({
     defaultOptions: {
       queries: {
@@ -40,6 +40,6 @@ export function createRouter() {
 
 declare module "@tanstack/react-router" {
   interface Register {
-    router: ReturnType<typeof createRouter>;
+    router: ReturnType<typeof getRouter>;
   }
 }