fix(lastleg): restore dispatch returns from immutable pick source and expose customer receipts

lastleg-service/src/test/java/com/baiyue/lastleg/dispatch/pda/service/DispatchPdaWorkflowServiceTest.java

@@ -162,6 +162,7 @@ class DispatchPdaWorkflowServiceTest {
         when(orders.findGlobalByDispatchNo("DSP-1")).thenReturn(order);
         when(tasks.lockByDispatch("100", 1L)).thenReturn(task);
         when(operations.findKey("100", "pick-1")).thenReturn(replay);
+        when(orders.lockById("100", 1L)).thenReturn(order);
 
         DispatchPdaResponses.Picked result = service.pick("WH-1", "DSP-1", 21L, "7", "Picker", request);
 
@@ -169,6 +170,10 @@ class DispatchPdaWorkflowServiceTest {
         verify(inventory, never()).allocate(any(), any(), any());
         verify(picks, never()).insert((DispatchPdaPick) any());
         verify(items, never()).bindReceivedPallets(any(), any());
+        var locks = org.mockito.Mockito.inOrder(orders, tasks);
+        locks.verify(orders).findGlobalByDispatchNo("DSP-1");
+        locks.verify(orders).lockById("100", 1L);
+        locks.verify(tasks).lockByDispatch("100", 1L);
     }
 
     @Test