fix: Task back button navigates to correct recipe (not version_id)

- Add recipe_id property to RecipeTask model (via version relationship)
- Add recipe_id to TaskResponse schema
- Eager-load version in _get_task_or_404 query
- Use task.recipe_id instead of task.version_id in task_execute template URLs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/models/task.py

@@ -39,6 +39,13 @@ class RecipeTask(Base):
         {"mysql_engine": "InnoDB", "mysql_charset": "utf8mb4"},
     )
 
+    @property
+    def recipe_id(self) -> int | None:
+        """Shortcut: recipe_id via the version relationship."""
+        if self.version:
+            return self.version.recipe_id
+        return None
+
     def __repr__(self) -> str:
         return f"<RecipeTask #{self.order_index} '{self.title}'>"
 

server/routers/tasks.py

@@ -55,7 +55,10 @@ async def _get_task_or_404(db: AsyncSession, task_id: int) -> RecipeTask:
     result = await db.execute(
         select(RecipeTask)
         .where(RecipeTask.id == task_id)
-        .options(selectinload(RecipeTask.subtasks))
+        .options(
+            selectinload(RecipeTask.subtasks),
+            selectinload(RecipeTask.version),
+        )
     )
     task = result.scalar_one_or_none()
     if task is None:

server/schemas/task.py

@@ -73,6 +73,7 @@ class TaskResponse(BaseModel):
 
     id: int
     version_id: int
+    recipe_id: Optional[int] = None
     order_index: int
     title: str
     directive: Optional[str] = None