[bugfix][memory] modified init_global_msg and update_msg_content_by_rule func

Author: yunjiu

muagent/connector/memory_manager.py

@@ -861,7 +861,7 @@ def tbasedoc2Memory(self, r_docs) -> Memory:
 
 
     def init_global_msg(self, chat_index: str, role_name: str, role_content: str, role_type: str = "global_value") -> bool:
-        msg = Message(chat_index=chat_index, role_name=role_name, role_type=role_type, role_content=role_content)
+        msg = Message(chat_index=chat_index, message_index = role_name ,role_name=role_name, role_type=role_type, role_content=role_content)
         try:
             self.append(msg)
             return True  
@@ -889,14 +889,15 @@ def update_msg_content_by_rule(self, chat_index: str, role_name: str, new_conten
         if message == None:
             return False 
 
-        prompt = f"{new_content}{message.role_content}{update_rule}"
+        prompt = f"{new_content}\n{role_name}:{message.role_content}\n{update_rule}"
 
         model = getChatModelFromConfig(self.llm_config)
 
         new_role_content = model.predict(prompt)
 
         if new_role_content is not None:
             message.role_content = new_role_content  
+            self.append(message)
             return True
         else:
             return False