refactor: set scaled_amount on GroupRecipeActionPayload

mealie/routes/households/controller_group_recipe_actions.py

@@ -93,8 +93,9 @@ class GroupRecipeActionController(BaseUserController):
                 detail=ErrorResponse.respond(message="Not found."),
             ) from e
 
-        payload = GroupRecipeActionPayload(action=recipe_action, content=recipe).model_dump()
-        payload["scaled_amount"] = scaled_amount
+        payload = GroupRecipeActionPayload(
+            action=recipe_action, content=recipe, scaled_amount=scaled_amount
+        ).model_dump()
         bg_tasks.add_task(
             task_action,
             url=recipe_action.url,

mealie/schema/household/group_recipe_action.py

@@ -44,3 +44,4 @@ class GroupRecipeActionPagination(PaginationBase):
 class GroupRecipeActionPayload(MealieModel):
     action: GroupRecipeActionOut
     content: Any
+    scaled_amount: float | None = None