feat: remove restart=browser strategy from CodeceptJS

- Remove browser restart option from Playwright helper due to hanging issues
- Update PlaywrightRestartOpts.js to remove browser option and function
- Remove restartBrowser method from Playwright helper
- Update lib/listener/helpers.js to remove browser restart detection
- Remove single-test-timeout.yml workflow
- Update GitHub workflows to use context restart instead of browser restart
- Update documentation to remove browser restart references
- Remove debug test files

The restart=browser strategy was causing tests to hang indefinitely
due to browser context close promises never settling. This removal
ensures more reliable test execution.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: DavertMik

.github/workflows/playwright.yml

@@ -58,9 +58,6 @@ jobs:
       - name: run chromium tests
         run: 'BROWSER=chromium ./bin/codecept.js run -c test/acceptance/codecept.Playwright.js --grep @Playwright --verbose'
         timeout-minutes: 18
-      - name: run chromium with restart==browser tests
-        run: 'BROWSER_RESTART=browser ./bin/codecept.js run -c test/acceptance/codecept.Playwright.js --grep @Playwright --verbose'
-        timeout-minutes: 18
       - name: run chromium with restart==session tests
         run: 'BROWSER_RESTART=session ./bin/codecept.js run -c test/acceptance/codecept.Playwright.js --grep @Playwright --verbose'
         timeout-minutes: 18