Fix marketing auth/checkout E2E selectors

tests/ui/auth/auth-flows.test.ts

@@ -15,7 +15,7 @@ test.describe('Marketing auth flows', () => {
     await page.getByLabel(/Nachname/i).fill('Tester');
     await page.getByLabel(/^E-Mail/i).fill(email);
     await page.getByLabel(/Telefon/i).fill('+49123456789');
-    await page.getByLabel(/Adresse/i).fill('Teststr. 1, 12345 Berlin');
+    await page.fill('input[name="address"]', 'Teststr. 1, 12345 Berlin');
     await page.getByLabel(/Username/i).fill(username);
     await page.fill('input[name="password"]', password);
     await page.fill('input[name="password_confirmation"]', password);

tests/ui/purchase/standard-package-checkout.test.ts

@@ -7,11 +7,13 @@ test.describe('Standard package checkout with Paddle completion', () => {
   test('registers, applies coupon, and reaches confirmation', async ({
     page,
     clearTestMailbox,
+    seedTestCoupons,
     getLatestCheckoutSession,
     simulatePaddleCompletion,
     getTestMailbox,
   }) => {
     await clearTestMailbox();
+    await seedTestCoupons();
 
     const unique = Date.now();
     const email = `checkout+${unique}@example.test`;
@@ -97,7 +99,9 @@ test.describe('Standard package checkout with Paddle completion', () => {
 
     await page.getByPlaceholder(/Gutscheincode/i).fill('PERCENT10');
     await page.getByRole('button', { name: /Gutschein anwenden|Apply coupon/i }).click();
-    await expect(page.getByText(/Gutschein PERCENT10/i)).toBeVisible();
+    await expect(
+      page.getByText(/Gutschein PERCENT10 aktiviert|Coupon PERCENT10 applied/i)
+    ).toBeVisible();
 
     const termsCheckbox = page.locator('#checkout-terms-hero');
     await expect(termsCheckbox).toBeVisible();