Three New Skills — Crawl-Fetch-Ingest, Maintain DESIGN.md, Generate Consistent OG Images

Codified three workflows the team had been doing freehand: VC firm metadata crawls (crawl-fetch-ingest), agent-readable project visual-identity contracts following Google Stitch's open spec (maintain-design-md), and consistent share-imagery generation via the Ideogram v3 API with WhatsApp/iMessage as the primary target (generate-consistent-og-images). The OG-images skill picked up an empirical refinement this session — empty space has to be declared as a first-class rendered subject, not left as residue — that pushed the BannerTall composition from a chronic 85% subject-fill to a clean 40-65%.