Shop D3: Connect-Webhook (account.updated, Checkout-Abschluss/Verwerfen, charge.refunded nachtragen)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

test/support/fakeStripe.js

@@ -286,6 +286,11 @@ export async function startFakeStripe() {
         refunds.set(obj.id, obj)
         return [200, obj]
       }
+      if (method === 'GET' && path === '/v1/refunds') {
+        const pi = query.get('payment_intent')
+        const items = [...bucket(refundMaps, account).values()].filter((r) => !pi || r.payment_intent === pi)
+        return [200, { object: 'list', data: items, has_more: false, url: '/v1/refunds' }]
+      }
       if (method === 'GET' && (m = path.match(/^\/v1\/refunds\/([^/]+)$/))) {
         const found = bucket(refundMaps, account).get(m[1])
         return found ? [200, found] : noSuch('refund', m[1])