// @ts-checkconst { test, expect } = require('@playwright/test');// The web app renders the sign-in screen when no session token is stored.// These smoke tests only rely on the frontend, so they pass without the FastAPI backend.test.describe('Sign-in page', () => {  test('should load successfully', async ({ page }) => {    await page.goto('/');    await expect(page).toHaveTitle(/WL Sales Academy/);  });  test('should show the sign-in form', async ({ page }) => {    await page.goto('/');    await expect(      page.getByRole('heading', { name: /Sign in to the Blueprint command center/i }),    ).toBeVisible();    await expect(page.getByRole('button', { name: 'Sign in' })).toBeVisible();  });});