fix: deduplicate unified order locations

order/src/test/java/com/baiyue/order/service/UnifiedOrderQueryServiceTest.java

@@ -487,7 +487,7 @@ class UnifiedOrderQueryServiceTest {
             assertThat(row.inboundCode()).isEqualTo("RK-77");
             assertThat(row.channelCode()).isEqualTo("MATSON");
             assertThat(row.recommendedPalletType()).isNull();
-            assertThat(row.locationCodes()).isEqualTo("A0-01, B2-03");
+            assertThat(row.locationCodes()).isEqualTo("A0-01、B2-03");
             assertThat(row.companyName()).isEqualTo("测试客户有限公司");
             assertThat(row.businessType()).isEqualTo("SEA_LCL");
             assertThat(row.totalPalletCount()).isEqualTo(2);
@@ -512,6 +512,19 @@ class UnifiedOrderQueryServiceTest {
         assertThat(row.totalNetWeightKg()).isNull();
     }
 
+    @Test
+    void unifiedRowDeduplicatesLocationCodesInFirstSeenOrder() {
+        UnifiedOrderQuery query = query("INBOUNDED");
+        var summary = summary("INBOUNDED", null);
+        when(summary.inbound().locationCodes()).thenReturn("A0、 A0, A0，A0");
+        when(firstleg.page(eq("internal-token"), any())).thenReturn(
+            ApiResponse.success(new PageResult<>(List.of(summary), 1, 20, 1, 1)));
+
+        var row = service.page(null, query).records().get(0);
+
+        assertThat(row.locationCodes()).isEqualTo("A0");
+    }
+
     @Test
     void waitSplitFilterForwardsAndReturnsWaitSplitIndependently() {
         UnifiedOrderQuery query = query("WAIT_SPLIT");