feat: re-introduce regression testing suite with pnpm

tests/e2e/landing.test.ts

@@ -0,0 +1,11 @@
+import { test, expect } from '@playwright/test';
+
+test('has title and login form', async ({ page }) => {
+    await page.goto('/');
+
+    // Expect a title "to contain" a substring.
+    await expect(page.locator('h1')).toContainText('WHISKYVAULT');
+
+    // Expect login form to be visible
+    await expect(page.getByPlaceholder('name@beispiel.de')).toBeVisible();
+});