Improved Behat tests with correct Gherkin structure and JS screenshot probing.

[AlexSkrypnyk]

Summary

• Fixed homepage feature tests to use proper Gherkin Given/When/Then structure — scenarios previously started with Given I go to the homepage, which conflates setup and action; they now open with Given I am an anonymous user (or similar state setup) before the When step that navigates to the page.
• Updated the screenshot smoke test to include the @javascript tag so it runs in a real browser context (Selenium/Chrome). Screenshots require a JavaScript-capable driver; without this tag the scenario was assigned to BrowserKit, which cannot take screenshots.
• Both sets of changes are mirrored in the installer baseline fixtures under .vortex/installer/tests/Fixtures/handler_process/_baseline/tests/behat/features/ to keep the scaffold in sync.

Test plan

• Run ahoy test-bdd and confirm all Behat scenarios pass, including the screenshot smoke test.
• Verify the homepage scenarios execute without Gherkin step-order warnings.
• Confirm the installer fixture diff matches the changes in tests/behat/features/.

[github-actions]

Code coverage (threshold: 90%)

  Classes: 100.00% (1/1)
  Methods: 100.00% (2/2)
  Lines:   98.53% (201/204)

Per-class coverage

Drupal\ys_demo\Plugin\Block\CounterBlock
  Methods: 100.00% ( 2/ 2)   Lines: 100.00% ( 10/ 10)

[AlexSkrypnyk]

Code coverage (threshold: 90%)

  Classes: 100.00% (1/1)
  Methods: 100.00% (2/2)
  Lines:   98.53% (201/204)

Per-class coverage

Drupal\ys_demo\Plugin\Block\CounterBlock
  Methods: 100.00% ( 2/ 2)   Lines: 100.00% ( 10/ 10)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.42%. Comparing base (b6e739e) to head (12c0000).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2447      +/-   ##
==========================================
- Coverage   79.88%   79.42%   -0.47%     
==========================================
  Files         128      121       -7     
  Lines        6861     6702     -159     
  Branches       47        3      -44     
==========================================
- Hits         5481     5323     -158     
+ Misses       1380     1379       -1     

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