style: 代码格式化，修复缩进问题

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/plugins/chat/__init__.py

@@ -92,12 +92,13 @@ async def _(bot: Bot):
 
 @msg_in.handle()
 async def _(bot: Bot, event: MessageEvent, state: T_State):
-    #处理合并转发消息
+    # 处理合并转发消息
     if "forward" in event.message:
-        await chat_bot.handle_forward_message(event , bot)
-    else :
+        await chat_bot.handle_forward_message(event, bot)
+    else:
         await chat_bot.handle_message(event, bot)
 
+
 @notice_matcher.handle()
 async def _(bot: Bot, event: NoticeEvent, state: T_State):
     logger.debug(f"收到通知：{event}")