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/utils/utils_image.py

@@ -27,16 +27,15 @@ logger = get_logger("chat_image")
 def is_image_message(message: Dict[str, Any]) -> bool:
     """
     判断消息是否为图片消息
-    
+
     Args:
         message: 消息字典
-        
+
     Returns:
         bool: 是否为图片消息
     """
     return message.get("type") == "image" or (
-        isinstance(message.get("content"), dict) and 
-        message["content"].get("type") == "image"
+        isinstance(message.get("content"), dict) and message["content"].get("type") == "image"
     )
 
 
@@ -596,7 +595,6 @@ class ImageManager:
             return "", "[图片]"
 
 
-
 # 创建全局单例
 image_manager = None