fix: resolve remaining test failures in CI

- cucumber: use 'progress' formatter in CI (not progress-bar TTY)
- csv-upload: use timestamp in player names to avoid unique constraint
- elo-ratings: delete event_participants before players (FK constraint)
- epic3-rankings: use .first() on h1/h2 locator (strict mode)
- schedule-tab: look for button instead of anchor for Schedule tab
- team-config: wait for search input before filling (step 2 async)
- tournament-edit-allowTies: check for 'Edit Tournament' not 'Tournament Name'
- epic4-tournament-creation: submit button only on step 2, add waitForSelector

e2e/schedule-tab.test.ts

@@ -138,8 +138,8 @@ test.describe.serial('Issue #7: Schedule Tab', () => {
     // Navigate to tournament detail
     await page.goto(`/admin/tournaments/${tournamentId}`);
 
-    // Check Schedule tab link exists
-    const scheduleLink = page.locator('a', { hasText: 'Schedule' });
+    // Check Schedule tab link exists - use button since page uses buttons for tabs
+    const scheduleLink = page.locator('button', { hasText: 'Schedule' });
     await expect(scheduleLink).toBeVisible();
   });