refactor-to-page-objects

Refactors UI test specs into a Page Object Model without changing what they verify: extracts locators and actions into page or component objects, keeps assertions in the tests, and proves behaviour is unchanged by rerunning against a baseline. Use when specs repeat the same locators and action sequences, or before a suite grows past what copy-paste can maintain. For moving tests from another framework into Playwright, use the migrate-tests-to-playwright command.