remove：移除情绪功能

src/chat/message_receive/bot.py

@@ -7,7 +7,6 @@ from maim_message import UserInfo, Seg, GroupInfo
 
 from src.common.logger import get_logger
 from src.config.config import global_config
-from src.mood.mood_manager import mood_manager  # 导入情绪管理器
 from src.chat.message_receive.chat_stream import get_chat_manager
 from src.chat.message_receive.message import MessageRecv
 from src.chat.message_receive.storage import MessageStorage
@@ -73,7 +72,6 @@ class ChatBot:
     def __init__(self):
         self.bot = None  # bot 实例引用
         self._started = False
-        self.mood_manager = mood_manager  # 获取情绪管理器单例
         self.heartflow_message_receiver = HeartFCMessageReceiver()  # 新增
 
     async def _ensure_started(self):