Extract a design system from vibe-coded production apps that never had one: inventory components, mine de-facto styling into DTCG tokens, scaffold a Storybook package, port components, and optionally round-trip tokens/components into Figma. Use when the user wants to 'extract a design system', 'create a design system from this app/codebase', 'reverse-engineer our components into Storybook', 'turn our app styles into tokens', or 'consolidate the UI of several AI-built products'. Works best with the figma-console-mcp local server connected (figma_ds_* tools); includes an agent-driven fallback.