migrating-tests-to-playwright

Migrates Cypress, Selenium, WebdriverIO, or Protractor suites to Playwright in staged slices, each with a parity gate before the old test is deleted. Use when porting a legacy browser suite, when deciding which tests are not worth porting, when a half-finished migration has stalled with two suites running in parallel, or when a suite migration needs a plan before anyone starts translating files.