注释掉pfc内容，暂时恢复部分代码保证可启动性

src/chat/heart_flow/heartflow_manager.py

@@ -5,18 +5,19 @@ import traceback
 from src.common.logger import get_logger
 from src.chat.message_receive.chat_manager import chat_manager
 from src.chat.heart_flow.heartFC_chat import HeartFChatting
-from src.chat.brain_chat.brain_chat import BrainChatting
+# from src.chat.brain_chat.brain_chat import BrainChatting
 
 logger = get_logger("heartflow")
 
-
+# TODO: 恢复PFC，现在暂时禁用
 class HeartflowManager:
     """主心流协调器，负责初始化并协调聊天，控制聊天属性"""
 
     def __init__(self):
-        self.heartflow_chat_list: Dict[str, HeartFChatting | BrainChatting] = {}
+        # self.heartflow_chat_list: Dict[str, HeartFChatting | BrainChatting] = {}
+        self.heartflow_chat_list: Dict[str, HeartFChatting] = {}
 
-    async def get_or_create_heartflow_chat(self, session_id: str) -> Optional[HeartFChatting | BrainChatting]:
+    async def get_or_create_heartflow_chat(self, session_id: str): # -> Optional[HeartFChatting | BrainChatting]:
         """获取或创建一个新的HeartFChatting实例"""
         try:
             if chat := self.heartflow_chat_list.get(session_id):
@@ -24,16 +25,17 @@ class HeartflowManager:
             chat_session = chat_manager.get_session_by_session_id(session_id)
             if not chat_session:
                 raise ValueError(f"未找到 session_id={session_id} 的聊天流")
-            new_chat = (
-                HeartFChatting(session_id=session_id) if chat_session.group_id else BrainChatting(session_id=session_id)
-            )
+            # new_chat = (
+            #     HeartFChatting(session_id=session_id) if chat_session.group_id else BrainChatting(session_id=session_id)
+            # )
+            new_chat = HeartFChatting(session_id=session_id)
             await new_chat.start()
             self.heartflow_chat_list[session_id] = new_chat
             return new_chat
         except Exception as e:
             logger.error(f"创建心流聊天 {session_id} 失败: {e}", exc_info=True)
             traceback.print_exc()
-        return None
+            raise e
 
     def adjust_talk_frequency(self, session_id: str, frequency: float):
         """调整指定聊天流的说话频率"""