design-sync dtsPropsFor fixes stripped native props in .d.ts contracts

The design-sync package converter (React DS -> Claude Design) runs ts-morph prop extraction that DROPS inherited React.*HTMLAttributes and filters style-system props. Result: form components ship .d.ts with only custom props (no value/onChange/onClick/placeholder/href), and types referenced but not defined (e.g. TabItem, SelectOption) come out as undefined names that will not compile. A design agent reading those contracts builds dead forms. Fix: set cfg.dtsPropsFor.<Name> to a hand-written prop-body string that re-adds the key native props AND inlines any referenced type shapes (e.g. items: { id: string; label: React.ReactNode }[]). Rebuild regenerates both the .d.ts and the prompt.md. Also: guidelinesGlob is markdown-only so ship reference images via a post-build copy into ds-bundle/guidelines.