Add property spring.cloud.stream.bindings.fulfillmentPendingInventoryOutput.destination: fulfillmentPendingInventory to correctly bind fulfillment pending inventory notifications.
Fixed an issue where @JsonIgnore on FulfillmentStatusChangeEvent#order/#fulfillment prevented the order and fulfillment IDs from being serialized at all.
As part of this fix, FulfillmentStatusChangeEvent now carries orderId and fulfillmentId directly instead of the full Order/OrderFulfillment payload.