fix: applied timezone to default values, removed value nesting

models/attribute.py

@@ -98,19 +98,9 @@ class AttributeValue(BaseModel):
     )
     attribute: Mapped[Attribute] = relationship(
         back_populates="values",
-        lazy="joined",
+        lazy="noload",
     )
 
-    def set_value(self, value: Optional[dict | str | bool | int | float]):
-        if value is None:
-            return
-        self.value = {"value": value}
-
-    def get_value(self) -> Optional[dict | str | bool | int | float]:
-        if self.value is None:
-            return None
-        return self.value["value"]
-
 
 class AttributeLabel(BaseModel):
     __tablename__ = "attribute_labels"
@@ -132,5 +122,5 @@ class AttributeLabel(BaseModel):
     )
     attribute: Mapped[Attribute] = relationship(
         backref="attribute_labels",
-        lazy="joined",
+        lazy="noload",
     )