minor: ruff format

Tabs -> spaces

src/models.py

@@ -10,28 +10,28 @@ from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
 
 
 class CustomBase(DeclarativeBase):
-	type_annotation_map = {
-		datetime: DateTime(timezone=True),
-		dict[str, Any]: JSON,
-	}
+    type_annotation_map = {
+        datetime: DateTime(timezone=True),
+        dict[str, Any]: JSON,
+    }
 
 
 class ActivatedMixin:
-	active: Mapped[bool] = mapped_column(default=True)
+    active: Mapped[bool] = mapped_column(default=True)
 
 
 class DeletedTimestampMixin:
-	deleted_at: Mapped[datetime | None] = mapped_column(nullable=True)
+    deleted_at: Mapped[datetime | None] = mapped_column(nullable=True)
 
 
 class DescriptionMixin:
-	description: Mapped[str]
+    description: Mapped[str]
 
 
 class IdMixin:
-	id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
 
 
 class TimestampMixin:
-	created_at: Mapped[datetime] = mapped_column(default=func.now())
-	updated_at: Mapped[datetime] = mapped_column(default=func.now(), onupdate=func.now())
+    created_at: Mapped[datetime] = mapped_column(default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(default=func.now(), onupdate=func.now())