Some teams standardize on Playwright instead of Puppeteer. Explore a runner abstraction that can support Playwright while preserving the existing Puppeteer path.\n\nAcceptance criteria:\n- Existing Puppeteer scenarios continue working.\n- Runner abstraction is documented.\n- Tests cover runner selection.\n- No required dependency bloat unless the user opts in.
Some teams standardize on Playwright instead of Puppeteer. Explore a runner abstraction that can support Playwright while preserving the existing Puppeteer path.\n\nAcceptance criteria:\n- Existing Puppeteer scenarios continue working.\n- Runner abstraction is documented.\n- Tests cover runner selection.\n- No required dependency bloat unless the user opts in.