Agent Skills: lisa-codify-verification

Convert empirical verification into a regression test so it never has to be re-proven manually. Runs after a verification passes — picks the appropriate test framework for the verification type (Playwright for UI/browser, integration test for API/DB/auth, benchmark for performance, etc.), generates the test, wires it into the project's test runner, and confirms it executes. Mandatory step in the verification lifecycle and in the Build/Fix/Improve flows.