Playwright: check test API

test-playwright/00-confirm-test-api.spec.ts

@@ -0,0 +1,8 @@
+import { test, expect } from '@playwright/test';
+
+test('Confirm usage of test API', async ({ page }) => {
+  // Load app homepage
+  await page.goto('./account');
+  await page.getByRole('heading', { name: 'Advanced' }).click();
+  await expect(page.getByRole('textbox').nth(1)).toHaveValue('https://test-api.endorser.ch');
+});