Extract Design System from Frontend Code Analyze frontend source code to extract a comprehensive design system document (DESIGN.md) that captures the project's visual language — colors, typography, spacing, component patterns, and layout principles — directly from the source files, without needing to build or render the application. Why This Exists The skill works from rendered HTML. But often you have a codebase and want to understand its design system before you can even run the app — maybe dependencies are missing, the build is broken, or you just want a quick audit. This skill reads the s…