better：重整配置，分离表达，聊天模式区分

重整配置文件路径，添加更多配置选项
分离了人设表达方式和学习到的表达方式
将聊天模式区分为normal focus和auto

src/chat/focus_chat/heartFC_chat.py

@@ -3,7 +3,7 @@ import contextlib
 import time
 import traceback
 from collections import deque
-from typing import List, Optional, Dict, Any, Deque, Callable, Coroutine
+from typing import List, Optional, Dict, Any, Deque
 from src.chat.message_receive.chat_stream import ChatStream
 from src.chat.message_receive.chat_stream import chat_manager
 from rich.traceback import install