FIX [GUI] Fix e2e tests after Home becomes default view

Three Playwright e2e tests broke when the Home landing page replaced

Chat as the initial view:

- chat.spec.ts `should disable input when no target is active`: navigate

  to Chat before asserting the no-target-banner, since Home does not

  render that element.

- config.spec.ts `should enable chat input after a target is set`: same

  Chat navigation before the no-target-banner assertion.

- accessibility.spec.ts `should be navigable with keyboard`: wait for

  the Home sidebar button to render and dispatch the initial Tab through

  `body` so the focus advances into the DOM reliably under parallel

  worker load.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: romanlutz

frontend/e2e/accessibility.spec.ts

@@ -61,8 +61,14 @@ test.describe("Accessibility", () => {
   });
 
   test("should be navigable with keyboard", async ({ page }) => {
-    // Tab to the first interactive element
-    await page.keyboard.press("Tab");
+    // Wait for the first interactive element to render so Tab has something
+    // to focus. Without this, the test races the initial render and Tab can
+    // land on (and then lose) a transient element.
+    await expect(page.getByTitle("Home")).toBeVisible();
+
+    // Tab to the first interactive element. Sending the keystroke through
+    // `body` ensures the document has focus before the Tab is dispatched.
+    await page.locator("body").press("Tab");
     const focused = page.locator(":focus");
     await expect(focused).toBeVisible();
 

frontend/e2e/chat.spec.ts

@@ -297,6 +297,7 @@ test.describe("Multiple Messages", () => {
 test.describe("Chat without target", () => {
   test("should disable input when no target is active", async ({ page }) => {
     await page.goto("/");
+    await page.getByTitle("Chat").click();
 
     // The no-target-banner should be visible because no target is active
     await expect(page.getByTestId("no-target-banner")).toBeVisible();

frontend/e2e/config.spec.ts

@@ -246,6 +246,7 @@ test.describe("Target Config ↔ Chat Navigation", () => {
 
     // Start in chat — no-target-banner should be visible
     await page.goto("/");
+    await page.getByTitle("Chat").click();
     await expect(page.getByTestId("no-target-banner")).toBeVisible();
 
     // Go to config, set a target