Add Puppeteer utilities and scripts to enable AI agents to interactively
test and debug the documentation site during development.
Dependencies: puppeteer, pixelmatch, pngjs
Scripts: debug:browser, debug:screenshot, debug:inspect
Tools: 20+ helper functions, example scripts, comprehensive documentation
Enables AI agents to visually debug pages, test components, monitor
performance, and detect issues during development.
Co-authored-by: Claude <noreply@anthropic.com>
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