-- Folgeraten ueber Stripe Billing (Subscription Schedule) statt eigenem Off-Session-Einzug.
ALTER TABLE "Booking" ADD COLUMN "stripeScheduleId" TEXT;
CREATE UNIQUE INDEX "Booking_stripeScheduleId_key" ON "Booking"("stripeScheduleId");

ALTER TABLE "Installment" ADD COLUMN "stripeInvoiceId" TEXT;
CREATE UNIQUE INDEX "Installment_stripeInvoiceId_key" ON "Installment"("stripeInvoiceId");