0.1.1 — storefront galleries and guides

• Markdown renderer: standalone image + gallery-grid support (tested)
• Product pages can show theme/product screenshots; assets ship to dist
• Two guides published: Gumroad alternatives and selling with Stripe Payment Links
• Home page links the guides; IndexNow ping on every deploy
• Fulfillment: grants can match by price id (API-created sessions); seller self-purchases fulfill cleanly