✨ Add created_at field to User and Item models and update endpoints (#2144)

backend/app/api/routes/items.py

@@ -21,7 +21,9 @@ def read_items(
     if current_user.is_superuser:
         count_statement = select(func.count()).select_from(Item)
         count = session.exec(count_statement).one()
-        statement = select(Item).offset(skip).limit(limit)
+        statement = (
+            select(Item).order_by(Item.created_at.desc()).offset(skip).limit(limit)
+        )
         items = session.exec(statement).all()
     else:
         count_statement = (
@@ -33,6 +35,7 @@ def read_items(
         statement = (
             select(Item)
             .where(Item.owner_id == current_user.id)
+            .order_by(Item.created_at.desc())
             .offset(skip)
             .limit(limit)
         )