{"service":"shopify-webhooks","description":"Shopify webhook receiver for hubeshub.com","contract":"docs/mandates/260515_storefront-observability-mandate.md §4 + docs/260515_shopify-frontend-observability-plan.md §5","endpoints":{"health":"GET /health","webhook":"POST /shopify/webhook (single endpoint; topic routed by X-Shopify-Topic)"}}