Stripe-Produkt mit Produktbild; Portal-Konfiguration exportiert

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

server/services/stripeBilling.js

@@ -56,6 +56,7 @@ export async function ensureAboPrice() {
     name: config.stripe.productName,
     description: config.stripe.productDescription,
     statement_descriptor: config.stripe.statementDescriptor,
+    images: [config.stripe.productImage],
     metadata: { webklar: 'wartungs-abo' },
   })
   const price = await stripe.prices.create({
@@ -73,7 +74,7 @@ export async function ensureAboPrice() {
 
 let cachedPortalConfigId = null
 /** Kundenportal-Konfiguration (Zahlungsmittel, Rechnungen, Kuendigung zum Periodenende). */
-async function ensurePortalConfiguration() {
+export async function ensurePortalConfiguration() {
   if (cachedPortalConfigId) return cachedPortalConfigId
   const stripe = getStripe()
   const { data } = await stripe.billingPortal.configurations.list({ active: true, limit: 20 })