优化显示

backend/routes.py

@@ -28,6 +28,7 @@ class TaskUpdate(BaseModel):
     title: Optional[str] = None
     description: Optional[str] = None
     status: Optional[str] = None
+    polished_description: Optional[str] = None  # 支持更新或清空润色描述
 
 class TimerRequest(BaseModel):
     task_id: int
@@ -127,6 +128,9 @@ async def update_task(task_id: int, data: TaskUpdate, db: Session = Depends(get_
         task.description = data.description
     if data.status is not None:
         task.status = data.status
+    # 支持更新或清空 polished_description（包括设置为 null）
+    if hasattr(data, 'polished_description'):
+        task.polished_description = data.polished_description
 
     task.updated_at = datetime.utcnow()
     db.commit()