feat: statement for supplier and customer

stock/models.py

@@ -29,6 +29,7 @@ class StockChangeSourceEnum(models.IntegerChoices):
     TRANSPORT_OUT = 8, '调出'
     RECHECK_REMOVE = 9, '盘亏'
     EXPLODE = 10, '拆卷'
+    OFFSET = 11, '红冲'
 
     @classmethod
     def incoming_values(cls) -> set[int]:
@@ -39,6 +40,7 @@ class StockChangeSourceEnum(models.IntegerChoices):
             cls.TRANSPORT_IN,
             cls.RECHECK_ADD,
             cls.COMBINE,
+            cls.OFFSET,
         }
 
     @classmethod
@@ -50,6 +52,7 @@ class StockChangeSourceEnum(models.IntegerChoices):
             cls.TRANSPORT_OUT,
             cls.RECHECK_REMOVE,
             cls.EXPLODE,
+            cls.OFFSET,
         }