新增结束语，似乎很优雅

src/plugins/PFC/conversation.py

@@ -564,10 +564,48 @@ class Conversation:
                 )
                 self.conversation_info.last_successful_reply_action = None  # 重置状态
 
+        elif action == "say_goodbye":
+            self.state = ConversationState.GENERATING # 也可以定义一个新的状态，如 ENDING
+            logger.info(f"[私聊][{self.private_name}]执行行动: 生成并发送告别语...")
+            try:
+                # 1. 生成告别语 (使用 'say_goodbye' action_type)
+                self.generated_reply = await self.reply_generator.generate(
+                    observation_info, conversation_info, action_type="say_goodbye"
+                )
+                logger.info(f"[私聊][{self.private_name}]生成的告别语: {self.generated_reply}")
+
+                # 2. 直接发送告别语 (不经过检查)
+                if self.generated_reply: # 确保生成了内容
+                    await self._send_reply() # 调用发送方法
+                    # 发送成功后，标记动作成功
+                    action_successful = True
+                    logger.info(f"[私聊][{self.private_name}]告别语已发送。")
+                else:
+                    logger.warning(f"[私聊][{self.private_name}]未能生成告别语内容，无法发送。")
+                    action_successful = False # 标记动作失败
+                    conversation_info.done_action[action_index].update(
+                        {"status": "recall", "final_reason": "未能生成告别语内容"}
+                    )
+
+                # 3. 无论是否发送成功，都准备结束对话
+                self.should_continue = False
+                logger.info(f"[私聊][{self.private_name}]发送告别语流程结束，即将停止对话实例。")
+
+            except Exception as goodbye_err:
+                logger.error(f"[私聊][{self.private_name}]生成或发送告别语时出错: {goodbye_err}")
+                logger.error(f"[私聊][{self.private_name}]{traceback.format_exc()}")
+                # 即使出错，也结束对话
+                self.should_continue = False
+                action_successful = False # 标记动作失败
+                conversation_info.done_action[action_index].update(
+                    {"status": "recall", "final_reason": f"生成或发送告别语时出错: {goodbye_err}"}
+                )
+
         elif action == "end_conversation":
+            # 这个分支现在只会在 action_planner 最终决定不告别时被调用
             self.should_continue = False
-            logger.info(f"[私聊][{self.private_name}]决定结束对话...")
-            action_successful = True  # 标记动作成功
+            logger.info(f"[私聊][{self.private_name}]收到最终结束指令，停止对话...")
+            action_successful = True  # 标记这个指令本身是成功的
 
         elif action == "block_and_ignore":
             logger.info(f"[私聊][{self.private_name}]不想再理你了...")