fix(dropship): preserve carton quantities and shared pallet outbound ownership

common-event-contract/src/main/resources/openapi/cross-region-events-v1.yaml

@@ -66,7 +66,7 @@ components:
           items: {$ref: '#/components/schemas/FirstLegSkuPackageSnapshotV2'}
     FirstLegSkuPackageSnapshotV2:
       type: object
-      required: [sourceInboundDetailId, skuCode, productName, packageCount, productQuantity, cartonMarks]
+      required: [sourceInboundDetailId, skuCode, productName, packageCount, productQuantity, cartonMarks, cartonQuantities]
       properties:
         sourceInboundDetailId: {type: string, minLength: 1, description: Exact source inbound detail identity matching the order item; never infer from SKU because multiple details may share a SKU}
         skuCode: {type: string}
@@ -74,6 +74,10 @@ components:
         packageCount: {type: integer, minimum: 1}
         productQuantity: {type: integer, minimum: 1}
         cartonMarks: {type: array, items: {type: string}, minItems: 1}
+        cartonQuantities:
+          type: object
+          description: 箱唛到逐箱实收件数的完整映射；键与 cartonMarks 相同，件数合计等于 productQuantity
+          additionalProperties: {type: integer, minimum: 1}
     OverseasContainerUnloadedV1:
       type: object
       required: [sourceContainerBookingId, containerNo, unloadingCompletedAt, unloadingPhotoUploadedAt]