Simplify from claude

kitchen/models.py

@@ -1,3 +1,5 @@
+from datetime import date, timedelta
+
 from django.db import models
 from django.core.exceptions import ValidationError
 
@@ -72,8 +74,6 @@ class PantryItem(models.Model):
         if self.location == self.Location.FRIDGE and self.expiry_date is None:
             # Try to auto-set from ingredient shelf life
             if self.ingredient_id and self.ingredient.shelf_life_days:
-                from datetime import date, timedelta
-
                 self.expiry_date = date.today() + timedelta(days=self.ingredient.shelf_life_days)
             # Don't raise an error — some fridge items just don't have a known expiry