fix(firstleg): keep loading evidence replacement transactional

firstleg/src/main/java/com/baiyue/firstleg/loading/service/CabinetLoadingEvidenceService.java

@@ -84,13 +84,14 @@ public class CabinetLoadingEvidenceService {
         value.setCreatedBy(operatorId); value.setCreatedByName(operatorName);
         value.setUpdatedBy(operatorId); value.setUpdatedByName(operatorName);
         try { mapper.insert(value); } catch (DuplicateKeyException exception) {
-            CabinetLoadingEvidenceEntity concurrent = mapper.byOperation(taskId, key);
-            if (concurrent != null && Objects.equals(concurrent.getRequestHash(), requestHash)) return view(scope);
+            // A replacement may already have voided the old row in this transaction.
+            // Roll it back; a subsequent same-key request can read the committed winner.
             throw conflict("装柜证据发生并发变更，请刷新后重试");
         }
         return view(scope);
     }
 
+    @Transactional
     public EvidenceList upload(long taskId, long warehouseId, String key, int expectedVersion,
                                String evidenceType, String sealNo, String remark, MultipartFile multipart,
                                long operatorId, String operatorName) {
@@ -167,7 +168,7 @@ public class CabinetLoadingEvidenceService {
     }
 
     private Scope scope(long taskId, long warehouseId, long operatorId, boolean mutable) {
-        LoadingPickTaskEntity task = loadingPicks.task(taskId);
+        LoadingPickTaskEntity task = mutable ? loadingPicks.taskForUpdate(taskId) : loadingPicks.task(taskId);
         var booking = task == null ? null : loadingPicks.activeBookingByTask(taskId);
         if (task == null || task.getContainerBookingId() == null || booking == null
             || !Objects.equals(task.getContainerBookingId(), booking.getId())) {