Fix normalized quantity basis

tests/test_costco_pipeline.py

@@ -264,6 +264,26 @@ class CostcoPipelineTests(unittest.TestCase):
         self.assertEqual("6", row["normalized_quantity"])
         self.assertEqual("count", row["normalized_quantity_unit"])
 
+        volume_row = enrich_costco.parse_costco_item(
+            order_id="abc",
+            order_date="2026-03-12",
+            raw_path=Path("costco_output/raw/abc.json"),
+            line_no=3,
+            item={
+                "itemNumber": "1185912",
+                "itemDescription01": "KS ALMND BAR US 1.74QTS CN",
+                "itemDescription02": None,
+                "itemDepartmentNumber": 18,
+                "transDepartmentNumber": 18,
+                "unit": 2,
+                "itemIdentifier": "E",
+                "amount": 21.98,
+                "itemUnitPriceAmount": 10.99,
+            },
+        )
+        self.assertEqual("3.48", volume_row["normalized_quantity"])
+        self.assertEqual("qt", volume_row["normalized_quantity_unit"])
+
         discount = enrich_costco.parse_costco_item(
             order_id="abc",
             order_date="2026-03-12",