hotfix(medusa): Temporary multi-warehouse support for draft orders (#3665)

* remove reservations from draft order creation and show correct inventory

* add changeset

* add integration tests

* adjust inventory on payment if no inventory service is installed

packages/admin-ui/ui/src/domain/orders/details/create-fulfillment/item-table.tsx

@@ -125,7 +125,7 @@ const FulfillmentLine = ({
   const validQuantity =
     !locationId ||
     (locationId &&
-      (!availableQuantity || quantities[item.id] < availableQuantity))
+      (!availableQuantity || quantities[item.id] <= availableQuantity))
 
   React.useEffect(() => {
     setErrors((errors) => {