fix: allow measurement draft during processing

firstleg/src/test/java/com/baiyue/firstleg/service/InboundMeasurementServiceTest.java

@@ -1406,6 +1406,30 @@ class InboundMeasurementServiceTest {
         verify(orderCargoClient).detail("internal-token", 1L, 80L, 80001L);
     }
 
+    @Test
+    void savingDraftRemainsEditableWhileInboundIsProcessingBeforeMeasurementSubmission() {
+        InboundOrderEntity inbound = inbound("PROCESSING");
+        inbound.setOrderId(80L);
+        InboundMeasurementEntity saved = new InboundMeasurementEntity();
+        saved.setId(31L);
+        saved.setVersion(0);
+        saved.setStatus("DRAFT");
+        when(repository.findInbound(1L, 10L)).thenReturn(inbound);
+        when(orderCargoClient.detail(eq("internal-token"), eq(1L), eq(80L), eq(80001L))).thenReturn(
+            ApiResponse.success(new OrderCargoClient.CargoBinding(80001L, 80L, 1, "Test cargo",
+                2, new BigDecimal("6.500"), new BigDecimal("0.0480"))));
+        when(batchService.saveBatch(any())).thenReturn(saved);
+
+        InboundMeasurementResponses.DraftSaved result = service.saveDraft(1L, 10L, 9L,
+            new InboundMeasurementRequests.SaveDraftRequest(null, 0, null,
+                List.of(new InboundMeasurementRequests.ItemRequest(80001L, "001", "A", 2,
+                    new BigDecimal("40"), new BigDecimal("30"), new BigDecimal("20"),
+                    null, null, null, null, null, null))));
+
+        assertThat(result.measurementId()).isEqualTo(31L);
+        verify(batchService).saveBatch(any());
+    }
+
     @Test
     void savingDraftCannotReopenSubmittedMeasurementWhileReviewIsPending() {
         InboundOrderEntity inbound = inbound("MEASURE_PENDING");