models: Fruitless UUID fix attempts

I hoped this would fix SQLite.  It does not.

schilder2000/models.py

@@ -2,14 +2,14 @@ from uuid import UUID
 
 from uuid_extensions import uuid7
 
-from sqlalchemy import String, Text
+from sqlalchemy import String, Text, Uuid
 from sqlalchemy.orm import Mapped, mapped_column
 
 from . import db
 
 
 class Schild(db.Model):
-    ident: Mapped[UUID] = mapped_column(primary_key=True, default=uuid7)
+    ident: Mapped[UUID] = mapped_column(Uuid, primary_key=True, default=uuid7)
     title: Mapped[str] = mapped_column(String(31))
     text: Mapped[str] = mapped_column(Text)
     image: Mapped[str] = mapped_column(String(255), nullable=True)