fix: ty compliant & issues from change to mapped columns

src/models.py

@@ -1,6 +1,7 @@
 """
 Global database models
 """
+
 from datetime import datetime
 from typing import Any
 
@@ -13,4 +14,3 @@ class CustomBase(DeclarativeBase):
 		datetime: DateTime(timezone=True),
 		dict[str, Any]: JSON,
 	}
-