feat: restructure checkout steps, add Kauf/Abo selection and product display flags

shop/lib/actions/orders.ts

@@ -55,8 +55,9 @@ export async function submitOrder(params: {
   customerProfile: Partial<Profile>
   endCustomerId?: string | null
   endCustomer?: EndCustomer | null
+  billingInterval?: 'one_time' | 'monthly'
 }): Promise<Order> {
-  const { selections, customerProfile, endCustomerId, endCustomer } = params
+  const { selections, customerProfile, endCustomerId, endCustomer, billingInterval } = params
   const supabase = await createClient()
 
   const { data: { user } } = await supabase.auth.getUser()
@@ -105,7 +106,7 @@ export async function submitOrder(params: {
   // 1. Snapshots aufbauen
   // Wenn Endkunde vorhanden: dessen Daten einfrieren; sonst Partner-Profil (Fallback)
   const customerSnapshot = buildCustomerSnapshot(customerProfile, endCustomer ?? null)
-  const orderSnapshot = buildOrderSnapshot(selections, dbProducts, dbCategories)
+  const orderSnapshot = buildOrderSnapshot(selections, dbProducts, dbCategories, billingInterval)
 
   // 2. Idempotenz-Guard: Prüfen ob identische Bestellung in den letzten 30s existiert
   const orderHash = hashOrderSnapshot(orderSnapshot)

shop/lib/license-transform.ts

@@ -84,7 +84,8 @@ export function buildCustomerSnapshot(
 export function buildOrderSnapshot(
   selections: WizardSelections,
   products: Product[],
-  categories: Category[]
+  categories: Category[],
+  billingInterval?: 'one_time' | 'monthly'
 ): OrderSnapshot {
   const items: OrderItem[] = []
   let subtotal = 0
@@ -127,10 +128,10 @@ export function buildOrderSnapshot(
   const taxAmount = Math.round(subtotal * (dominantTaxRate / 100) * 100) / 100
   const total = Math.round((subtotal + taxAmount) * 100) / 100
 
-  // Wenn alle Items one_time sind → billing_cycle = 'one_time', sonst 'monthly'
-  const billingCycle = items.every((i) => i.billing_interval === 'one_time')
+  // Wenn billingInterval übergeben, dieses nutzen; sonst automatisch ermitteln
+  const billingCycle = billingInterval || (items.every((i) => i.billing_interval === 'one_time')
     ? 'one_time'
-    : 'monthly'
+    : 'monthly')
 
   return {
     schema_version: 1,

shop/lib/types.ts

@@ -13,6 +13,8 @@ export type Product = {
   category?: Category | null
   modules?: ProductModule[]
   created_at: string
+  show_in_kauf?: boolean
+  show_in_abo?: boolean
 }
 
 export type Category = {