feat: add tournament schedule feature test (issue #7)

- Add tournament-schedule.feature with 4 scenarios
- Add step definitions for tournament schedule navigation
- Tests viewing schedule, generating round-robin, bye rounds, and matchup navigation
- Note: Some @wip scenarios require data setup (tournament creation, team addition)

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

@@ -230,6 +230,12 @@ Then('I should be on the password reset page', async function () {
   expect(currentUrl).toContain('/auth/password-reset');
 });
 
+Then('I should see the {string} button', async function (buttonText: string) {
+  const button = world.page.locator(`button:has-text("${buttonText}")`);
+  await expect(button).toBeVisible();
+  console.log(`🌍 Verified button is visible: ${buttonText}`);
+});
+
 Then('I should be redirected to {string}', async function (path: string) {
   await world.page.waitForLoadState('networkidle');
   const currentUrl = world.page.url();