fix(firstleg): atomically finalize PDA completion

firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java

@@ -54,6 +54,7 @@ import org.springframework.dao.DuplicateKeyException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.support.TransactionSynchronization;
 import org.springframework.transaction.support.TransactionSynchronizationManager;
+import org.springframework.transaction.support.TransactionTemplate;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
 import org.slf4j.Logger;
@@ -86,6 +87,8 @@ public class LoadingPickService {
     @Resource
     private LoadingCompletionCommandRepository completionCommands;
     @Resource
+    private TransactionTemplate completionTransaction;
+    @Resource
     private SmartLoadingRepository smartLoadingRepository;
     @Resource
     private OceanBookingRepository oceanBookingRepository;
@@ -565,6 +568,14 @@ public class LoadingPickService {
                     "INBOUND_COMPLETED");
             }
         }
+        completionTransaction.executeWithoutResult(ignored -> finalizeCompletion(command, worker, task, taskGroups));
+        completeTruckAfterCommit(task.getContainerBookingId(), taskId, command.getOperatorId(), command.getOperatorName());
+    }
+
+    /** Final Firstleg convergence only; all remote owner settlement calls have completed before this short transaction. */
+    private void finalizeCompletion(LoadingCompletionCommandEntity command, String worker,
+                                    LoadingPickTaskEntity task, List<GroupSnapshot> taskGroups) {
+        long taskId = task.getId();
         if (!repository.allPlanItemsPicked(task.getLoadingPlanId())) {
             throw new CompletionProcessingException("PLAN_GATE", conflict("柜次仍有未完成PDA拣货的箱数"));
         }
@@ -594,7 +605,6 @@ public class LoadingPickService {
         if (!completionCommands.complete(command.getId(), worker)) {
             throw new CompletionProcessingException("COMMAND_FINALIZE", conflict("装柜完成命令租约已变化"));
         }
-        completeTruckAfterCommit(task.getContainerBookingId(), taskId, command.getOperatorId(), command.getOperatorName());
     }
 
     private void requireColoadConservation(LoadingPickTaskEntity task,