Auth fertig erstellt. Aktuell läuft review durch KI

src/router.tsx

@@ -0,0 +1,22 @@
+import { createRouter as createTanStackRouter } from '@tanstack/react-router'
+import { routeTree } from './routeTree.gen'
+
+export function getRouter() {
+  const router = createTanStackRouter({
+    routeTree,
+    scrollRestoration: true,
+    defaultPreload: 'intent',
+    defaultPreloadStaleTime: 0,
+    context: {
+      session: null,
+    },
+  })
+
+  return router
+}
+
+declare module '@tanstack/react-router' {
+  interface Register {
+    router: ReturnType<typeof getRouter>
+  }
+}