Use basedpyright refactor

folkugat_web/model/_base.py

@@ -1,16 +1,19 @@
 import dataclasses
-from typing import Optional, TypeVar
+from typing import TypeVar
+
+from typing_extensions import override
 
 
 @dataclasses.dataclass
 class WithId:
-    id: Optional[int]
+    id: int | None
 
 
 T = TypeVar("T", bound=WithId)
 
 
 class IndexedList(list[T]):
+    @override
     def append(self, _item: T) -> None:
         if _item.id is None:
             _item.id = max((i.id or 0 for i in self), default=0) + 1