Q200: one-of choices and selected items say which is chosen

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/e2e/ceo-chat.spec.ts

@@ -404,7 +404,7 @@ test("the pinned CEO conversation is the Messages front door", async () => {
     await parentDialog.getByRole("button", { name: "Delete", exact: true }).click();
     await expect(parentDialog.getByRole("alertdialog", { name: "Delete this task?" })).toContainText("1 subtasks stay and move to the top level.");
     // Switching to another task drops a pending confirmation, so it can never delete the wrong task.
-    await parentDialog.getByRole("button", { name: "Subtasks" }).click();
+    await parentDialog.getByRole("radio", { name: "Subtasks" }).click();
     await parentDialog.getByRole("button", { name: "Open task Child step" }).click();
     const childDialog = page.getByRole("dialog", { name: "Child step" });
     await expect(childDialog).toBeVisible();

tests/e2e/desktop.spec.ts

@@ -244,7 +244,7 @@ test("onboards, hires, and creates work in the Electron shell", async () => {
     await page.getByRole("button", { name: "Advanced" }).click();
     await expect(page.getByText("Requests", { exact: true }).first()).toBeVisible();
     await expect(page.getByLabel("Request provider")).toBeVisible();
-    await expect(page.getByRole("button", { name: "Background" })).toBeVisible();
+    await expect(page.getByRole("radio", { name: "Background" })).toBeVisible();
     await page.getByLabel("Request prompt").fill("Draft a provider control memo.");
     await page.getByLabel("Request instructions").fill("Use direct language.");
 

tests/e2e/keyboard.spec.ts

@@ -55,6 +55,17 @@ test("a dialog keeps the keyboard inside it, closes on Escape, and gives focus b
     await expect(dialog).toHaveCount(0);
     // Both layers closed at once; focus still returns to what opened the dialog.
     await expect(opener).toBeFocused();
+
+    // A one-of choice says which option is chosen, and the arrow keys move the choice.
+    const views = page.getByRole("radiogroup", { name: "View" });
+    await expect(views.getByRole("radio", { name: "Board" })).toHaveAttribute("aria-checked", "true");
+    await views.getByRole("radio", { name: "Board" }).focus();
+    await page.keyboard.press("ArrowRight");
+    await expect(views.getByRole("radio", { name: "List" })).toHaveAttribute("aria-checked", "true");
+    await expect(views.getByRole("radio", { name: "List" })).toBeFocused();
+    await expect(views.getByRole("radio", { name: "Board" })).toHaveAttribute("aria-checked", "false");
+    await page.keyboard.press("Home");
+    await expect(views.getByRole("radio", { name: "Board" })).toHaveAttribute("aria-checked", "true");
   } finally {
     await closeApp(app);
   }

tests/e2e/onboarding-resume.spec.ts

@@ -75,8 +75,8 @@ test("onboarding resumes where it was left after the app is closed", async () =>
   await expect.poll(savedModel).toBe("cancelled-model");
   // Saving a preference refreshes the in-memory snapshot, which now holds the draft too.
   await page.getByRole("button", { name: "Back", exact: true }).click();
-  await page.getByRole("button", { name: "中文" }).click();
-  await page.getByRole("button", { name: "English" }).click();
+  await page.getByRole("radio", { name: "中文" }).click();
+  await page.getByRole("radio", { name: "English" }).click();
   // Past the 800 ms change-event reload window, so only Cancel itself can refresh the snapshot.
   await page.waitForTimeout(1_200);
   await page.getByRole("button", { name: "Cancel" }).click();