tomayac/wpt ? reverse-engineered prompt

Build me the web platform tests project, a big cross browser test suite for browser features and web specs.

I want a repo where test cases are organized by topic like CSS, cookies, WebCrypto, IndexedDB, and other browser APIs, with simple HTML based tests that can run in different browsers and help spot compatibility issues. It should be easy to start a local server, open tests in a browser, and run or check the suite from the command line. Also make sure there is a way to keep the test list up to date and catch lint issues before changes are committed.

The result should feel like the real WPT setup, with clear docs for how to add tests, run them locally, and verify that they work across browsers. If you need to look up current docs online while wiring it together, do that.