fix: resolve schedule test timing issues (#33)

- Add cache-busting timestamp to schedule page navigation in tests
- Use networkidle instead of load for more reliable page waits
- Simplify tournament admin login step (PostgreSQL-only now)

All 4 issue-7 schedule scenarios now pass consistently.

e2e/cucumber/step-definitions/auth-steps.ts

@@ -564,9 +564,10 @@ Given('a tournament exists with {int} teams', async function (teamCount: number)
 When('I go to the tournament schedule page', async function () {
   console.log('🌍 Going to tournament schedule page');
   const tournamentId = world.tournament?.id || 1;
-  await world.page.goto(`${world.baseURL}/admin/tournaments/${tournamentId}/schedule`);
-  await world.page.waitForLoadState('load');
-  // Wait for client components to hydrate
+  // Add cache-busting timestamp to force fresh data
+  const url = `${world.baseURL}/admin/tournaments/${tournamentId}/schedule?t=${Date.now()}`;
+  await world.page.goto(url);
+  await world.page.waitForLoadState('networkidle');
   await world.page.waitForTimeout(1000);
 });