Separate out into files

apps/demo/e2e/navigation.spec.ts

@@ -1,6 +1,7 @@
 import { expect, test, type Page } from "@playwright/test";
 
 async function captureTransitions(page: Page) {
+  await page.locator(".nvr-router-view").waitFor({ state: "attached" });
   await page.evaluate(() => {
     const state = window as typeof window & {
       __nvrEvents?: Array<{
@@ -260,7 +261,7 @@ test("renders a suspended pushed sibling and evicts it after backing out", async
     "page",
   );
   await expect(page.getByTestId("async-data-ready")).toBeVisible({
-    timeout: 2_000,
+    timeout: 4_000,
   });
 
   const lab = page.getByTestId("runtime-lab-view");
@@ -278,7 +279,7 @@ test("renders a suspended pushed sibling and evicts it after backing out", async
   await expect(page).toHaveURL(/\/profile\/runtime-lab$/);
   await expect(page.getByTestId("async-data-loading")).toBeVisible();
   await expect(page.getByTestId("async-data-ready")).toBeVisible({
-    timeout: 2_000,
+    timeout: 4_000,
   });
   await expect(page.getByTestId("runtime-lab-view")).not.toHaveAttribute(
     "data-mount-id",