fix: default option in attributes

models/attribute.py

@@ -8,7 +8,7 @@ from models.base import BaseModel
 from models.mixins import IdMixin, SoftDeleteMixin
 
 if TYPE_CHECKING:
-    from models import Module, Deal, AttributeSelect
+    from models import Module, Deal, AttributeSelect, AttributeOption
 
 module_attribute = Table(
     "module_attribute",
@@ -39,7 +39,15 @@ class Attribute(BaseModel, IdMixin, SoftDeleteMixin):
         comment="Применять ли изменения атрибута карточки ко всем карточкам в группе",
     )
     is_nullable: Mapped[bool] = mapped_column(default=False)
+
     default_value: Mapped[Optional[dict[str, any]]] = mapped_column(JSONB)
+    default_option_id: Mapped[Optional[int]] = mapped_column(
+        ForeignKey("attribute_options.id")
+    )
+    default_option: Mapped[Optional["AttributeOption"]] = relationship(
+        backref="attributes", lazy="joined"
+    )
+
     description: Mapped[str] = mapped_column(default="")
 
     is_built_in: Mapped[bool] = mapped_column(default=False)