将PFC加回来，修复一大堆PFC的神秘报错

src/chat/brain_chat/PFC/conversation_info.py

@@ -3,8 +3,8 @@ from typing import Optional
 
 class ConversationInfo:
     def __init__(self):
-        self.done_action = []
-        self.goal_list = []
-        self.knowledge_list = []
-        self.memory_list = []
+        self.done_action: list = []
+        self.goal_list: list = []
+        self.knowledge_list: list = []
+        self.memory_list: list = []
         self.last_successful_reply_action: Optional[str] = None