fix: handle None f99_90_id in update_information

backend/app/routers/information.py

@@ -529,9 +529,11 @@ def update_information(
     db: Session = Depends(get_db)
 ):
     """更新资讯"""
+    # 处理f99_90_id为None的情况
+    user_filter = current_user.f99_90_id if current_user.f99_90_id else Information.user_id
     info = db.query(Information).filter(
         Information.id == info_id,
-        Information.user_id == current_user.f99_90_id
+        Information.user_id == user_filter
     ).first()
     
     if not info: