chore: format code and remove redundant blank lines

This commit applies automated code formatting across the project. The changes primarily involve removing unnecessary blank lines and ensuring consistent code style, improving readability and maintainability without altering functionality.

src/chat/message_receive/storage.py

@@ -20,7 +20,7 @@ class MessageStorage:
         if isinstance(keywords, list):
             return orjson.dumps(keywords).decode("utf-8")
         return "[]"
-    
+
     @staticmethod
     def _deserialize_keywords(keywords_str: str) -> list:
         """将JSON字符串反序列化为关键词列表"""