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/config/official_configs.py

@@ -259,7 +259,6 @@ class NormalChatConfig(ValidatedConfigBase):
     """普通聊天配置类"""
 
 
-
 class ExpressionRule(ValidatedConfigBase):
     """表达学习规则"""
 
@@ -653,7 +652,8 @@ class ContextGroup(ValidatedConfigBase):
 
     name: str = Field(..., description="共享组的名称")
     chat_ids: List[List[str]] = Field(
-        ..., description='属于该组的聊天ID列表，格式为 [["type", "chat_id"], ...]，例如 [["group", "123456"], ["private", "789012"]]'
+        ...,
+        description='属于该组的聊天ID列表，格式为 [["type", "chat_id"], ...]，例如 [["group", "123456"], ["private", "789012"]]',
     )