修复：强化库存事务并发与日期边界

shierfeng-fastapi-backend/tests/module_business/test_vo_contract.py

@@ -569,6 +569,14 @@ WRITE_MODELS = (
     ReturnConfirmModel,
 )
 
+OPERATION_PAGE_QUERY_MODELS = (
+    InboundPageQueryModel,
+    FillingPageQueryModel,
+    ShipmentPageQueryModel,
+    UsagePageQueryModel,
+    ReturnPageQueryModel,
+)
+
 PAGE_QUERY_MODELS = (
     StrainPageQueryModel,
     CustomerPageQueryModel,
@@ -576,11 +584,7 @@ PAGE_QUERY_MODELS = (
     LinePageQueryModel,
     WarehousePageQueryModel,
     PalletPageQueryModel,
-    InboundPageQueryModel,
-    FillingPageQueryModel,
-    ShipmentPageQueryModel,
-    UsagePageQueryModel,
-    ReturnPageQueryModel,
+    *OPERATION_PAGE_QUERY_MODELS,
     PalletInventoryReportQueryModel,
     FillingReportQueryModel,
     ShipmentReportQueryModel,
@@ -775,6 +779,36 @@ class BusinessVoContractTest(unittest.TestCase):
                 with self.assertRaises(ValidationError):
                     model_class.model_validate({'pageSize': 0})
 
+    def test_operation_page_query_dates_require_strict_calendar_format(self) -> None:
+        for model_class in OPERATION_PAGE_QUERY_MODELS:
+            with self.subTest(model=model_class.__name__, case='begin-only'):
+                model = model_class.model_validate({'beginTime': '2026-07-01'})
+                self.assertEqual('2026-07-01', model.begin_time)
+                self.assertIsNone(model.end_time)
+            with self.subTest(model=model_class.__name__, case='end-only'):
+                model = model_class.model_validate({'endTime': '2026-07-31'})
+                self.assertIsNone(model.begin_time)
+                self.assertEqual('2026-07-31', model.end_time)
+            for field_name in ('beginTime', 'endTime'):
+                for invalid_date in ('not-a-date', '2026-02-30', '2026-7-01', '2026-07-1'):
+                    with (
+                        self.subTest(
+                            model=model_class.__name__,
+                            field=field_name,
+                            value=invalid_date,
+                        ),
+                        self.assertRaises(ValidationError),
+                    ):
+                        model_class.model_validate({field_name: invalid_date})
+
+    def test_operation_page_query_date_range_must_not_be_inverted(self) -> None:
+        for model_class in OPERATION_PAGE_QUERY_MODELS:
+            with self.subTest(model=model_class.__name__, case='equal'):
+                model = model_class.model_validate({'beginTime': '2026-07-02', 'endTime': '2026-07-02'})
+                self.assertEqual(model.begin_time, model.end_time)
+            with self.subTest(model=model_class.__name__, case='inverted'), self.assertRaises(ValidationError):
+                model_class.model_validate({'beginTime': '2026-07-03', 'endTime': '2026-07-02'})
+
     def test_pallet_page_size_is_capped_at_100(self) -> None:
         self.assertEqual(100, PalletPageQueryModel.model_validate({'pageSize': 100}).page_size)
         with self.assertRaises(ValidationError):