fix: replay completed pallet operations

lastleg-service/src/test/java/com/baiyue/lastleg/palletops/service/PdaPalletOperationServiceTest.java

@@ -27,6 +27,7 @@ import org.springframework.transaction.support.DefaultTransactionStatus;
 import org.springframework.web.server.ResponseStatusException;
 
 import java.util.List;
+import java.time.LocalDateTime;
 import java.util.concurrent.atomic.AtomicReference;
 
 import static org.junit.jupiter.api.Assertions.*;
@@ -119,6 +120,25 @@ class PdaPalletOperationServiceTest {
         assertEquals("PDAOPS-LONG-LOCATION-CODE", ledger.getValue().getWarehouseLocationCode());
     }
 
+    @Test void exactReplayReturnsStoredResultBeforeValidatingChangedPalletVersions() throws Exception {
+        var request = new PalletOperationRequests.Swap("idem-replay",
+            new PalletOperationRequests.PalletExpectation("SOURCE", 1),
+            new PalletOperationRequests.PalletExpectation("TARGET", 2), "swap");
+        PdaPalletOperation existing = new PdaPalletOperation(); existing.setId(500L);
+        existing.setOperationType("PALLET_SWAP"); existing.setStatus("COMPLETED");
+        existing.setRequestHash(ReflectionTestUtils.invokeMethod(service, "hash", request));
+        var stored = new com.baiyue.lastleg.palletops.dto.PalletOperationResponses.Operation(
+            500L, "PALLET_SWAP", "idem-replay", "COMPLETED", false, LocalDateTime.now(), List.of());
+        existing.setResultJson(new ObjectMapper().findAndRegisterModules().writeValueAsString(stored));
+        when(mapper.findOperation("7", "idem-replay")).thenReturn(existing);
+
+        var replay = service.swap(identity(), request);
+
+        assertTrue(replay.replayed());
+        assertEquals(500L, replay.operationId());
+        verifyNoInteractions(physical);
+    }
+
     private static PdaWarehouseIdentity identity() { return new PdaWarehouseIdentity("7", "picker", 88L); }
     private static PalletPhysicalGateway.PalletReference pallet(long id, String code, long warehouse, int version) {
         return new PalletPhysicalGateway.PalletReference(id, code, warehouse, 1000L + id,