Cart Reservation Patrol

Hold real Shopify inventory when shoppers add to cart—not a fake countdown. Stock stays reserved through checkout and auto-releases when the timer ends. Schedule product drops with ATC lock until start, queue waitlists when stock is fully held, and show scarcity on storefront widgets. Place announcement, PDP, ATC, cart, and drawer blocks; pick style presets in admin. Track holds with analytics and AI insights for launches and limited-stock sales.