贴标申请，仓储转运

lastleg-service/src/main/java/com/baiyue/lastleg/relabel/dto/RelabelResponses.java

@@ -20,7 +20,8 @@ public final class RelabelResponses {
                           String fulfillmentStatus, String outboundOrderNo, LocalDateTime customerConfirmedAt,
                           String reviewChannel, String reviewRemark, LocalDateTime createdAt,
                           LocalDateTime reviewedAt, LocalDateTime relabelCompletedAt, LocalDateTime outboundAt,
-                          String productNameZh, String labelRequirement, List<String> operationTypes) {}
+                          String productNameZh, String labelRequirement, List<String> operationTypes,
+                          List<String> relatedBusinessOrderNos) {}
     public record Milestones(LocalDateTime reviewedAt, LocalDateTime relabelCompletedAt,
                              LocalDateTime outboundAt) {}
     public record Item(Long id, String skuCode, String productImageFileId, String productImageFileName,

lastleg-service/src/main/java/com/baiyue/lastleg/relabel/service/RelabelApplicationService.java

@@ -1228,7 +1228,22 @@ public class RelabelApplicationService implements WalletResultHandler {
             detailItems.stream().map(RelabelItem::getLabelRequirement).filter(StringUtils::hasText)
                 .map(String::trim).distinct().collect(Collectors.joining("；")),
             detailItems.stream().map(RelabelItem::getOperationType).filter(StringUtils::hasText)
-                .map(String::trim).distinct().toList());
+                .map(String::trim).distinct().toList(), relatedBusinessOrderNos(value, order, detailItems));
+    }
+
+    private List<String> relatedBusinessOrderNos(RelabelApplication application, LastlegOrder order,
+                                                List<RelabelItem> detailItems) {
+        if (order != null && Objects.equals(application.getCustomerId(), order.getCustomerId())
+            && !"RELABEL_APPLICATION".equals(order.getOrderType())) {
+            String businessNo = StringUtils.hasText(order.getSourceOrderNo()) ? order.getSourceOrderNo() : order.getOrderNo();
+            if (StringUtils.hasText(businessNo)) return List.of(businessNo.trim());
+        }
+        // Standalone relabel orders keep the actual inventory source on their item snapshots.
+        // Their tail sourceOrderNo is a customer reference, not a business order number.
+        return detailItems.stream().map(item -> StringUtils.hasText(item.getSourceInboundOrderNo())
+                ? item.getSourceInboundOrderNo()
+                : "RETURN_BULK_SKU_LABEL".equals(item.getOperationType()) ? item.getShipmentNo() : null)
+            .filter(StringUtils::hasText).map(String::trim).distinct().toList();
     }
 
     @Override public boolean supports(String businessType) { return "RELABEL_ORDER".equals(businessType); }

lastleg-service/src/test/java/com/baiyue/lastleg/relabel/service/RelabelApplicationServiceTest.java

@@ -66,6 +66,29 @@ import static org.mockito.Mockito.times;
 
 @ExtendWith(MockitoExtension.class)
 class RelabelApplicationServiceTest {
+    @Test void relatedBusinessNumbersUseAuthoritativeSourcesInsteadOfCustomerReferences() {
+        var application = new RelabelApplication(); application.setCustomerId("C1"); application.setCustomerOrderNo("CUSTOMER-REFERENCE");
+        var order = new LastlegOrder(); order.setCustomerId("C1"); order.setOrderNo("TAIL-INTERNAL-NO");
+        for (var type : List.of("WAREHOUSE_TRANSFER", "RETURN_RELABEL", "FIRST_LEG")) {
+            order.setOrderType(type); order.setSourceOrderNo(type + "-BUSINESS-NO");
+            List<String> numbers = ReflectionTestUtils.invokeMethod(service, "relatedBusinessOrderNos", application, order, List.of());
+            assertEquals(List.of(type + "-BUSINESS-NO"), numbers);
+        }
+        order.setOrderType("RELABEL_APPLICATION"); order.setSourceOrderNo("CUSTOMER-REFERENCE");
+        var first = new RelabelItem(); first.setSourceInboundOrderNo(" RT-SOURCE-1 ");
+        var duplicate = new RelabelItem(); duplicate.setSourceInboundOrderNo("RT-SOURCE-1");
+        var second = new RelabelItem(); second.setSourceInboundOrderNo("IN-SOURCE-2");
+        var bulkReturn = new RelabelItem(); bulkReturn.setOperationType("RETURN_BULK_SKU_LABEL"); bulkReturn.setShipmentNo("RT-SOURCE-3");
+        var shipment = new RelabelItem(); shipment.setOperationType("CARTON_LABEL"); shipment.setShipmentNo("FBA-SHIPMENT");
+        List<String> sources = ReflectionTestUtils.invokeMethod(service, "relatedBusinessOrderNos", application, order,
+            List.of(first, duplicate, second, bulkReturn, shipment));
+        assertEquals(List.of("RT-SOURCE-1", "IN-SOURCE-2", "RT-SOURCE-3"), sources);
+        List<String> missing = ReflectionTestUtils.invokeMethod(service, "relatedBusinessOrderNos", application, order, List.of(shipment));
+        assertEquals(List.of(), missing);
+        order.setOrderType("RETURN_RELABEL"); order.setCustomerId("OTHER"); order.setSourceOrderNo("RT-OTHER-CUSTOMER");
+        List<String> foreign = ReflectionTestUtils.invokeMethod(service, "relatedBusinessOrderNos", application, order, List.of());
+        assertEquals(List.of(), foreign);
+    }
     @Test void summaryReturnsMilestonesFromCustomerScopedFacts() {
         var application = new RelabelApplication();
         application.setId(42L); application.setCustomerId("10001");