fix: 优化退出流程并添加超时保护

- 添加 is_exiting 标志防止退出流程被中断
- 工具调用添加 30 秒超时保护，避免流程卡死
- TTS 相关操作添加超时保护
- 优化 OpenAI 客户端超时配置

main/xiaozhi-server/core/providers/tts/base.py

@@ -357,7 +357,7 @@ class TTSProviderBase(ABC):
                     sendAudioMessage(self.conn, sentence_type, audio_datas, text),
                     self.conn.loop,
                 )
-                future.result()
+                future.result(timeout=15)
 
                 # 记录输出和报告
                 if self.conn.max_output_size > 0 and text:

main/xiaozhi-server/core/providers/tts/huoshan_double_stream.py

@@ -149,6 +149,7 @@ class TTSProvider(TTSProviderBase):
         self.cluster = config.get("cluster")
         self.resource_id = config.get("resource_id")
         self.activate_session = False
+        self.timeout = 30
         if config.get("private_voice"):
             self.voice = config.get("private_voice")
         else:
@@ -307,7 +308,7 @@ class TTSProvider(TTSProviderBase):
                             self.start_session(self.conn.sentence_id),
                             loop=self.conn.loop,
                         )
-                        future.result()
+                        future.result(self.timeout)
                         self.before_stop_play_files.clear()
                         logger.bind(tag=TAG).debug("TTS会话启动成功")
                     except Exception as e:
@@ -324,7 +325,7 @@ class TTSProvider(TTSProviderBase):
                                 self.text_to_speak(message.content_detail, None),
                                 loop=self.conn.loop,
                             )
-                            future.result()
+                            future.result(self.timeout)
                             logger.bind(tag=TAG).debug("TTS文本发送成功")
                         except Exception as e:
                             logger.bind(tag=TAG).error(f"发送TTS文本失败: {str(e)}")
@@ -344,7 +345,7 @@ class TTSProvider(TTSProviderBase):
                             self.finish_session(self.conn.sentence_id),
                             loop=self.conn.loop,
                         )
-                        future.result()
+                        future.result(self.timeout)
                     except Exception as e:
                         logger.bind(tag=TAG).error(f"结束TTS会话失败: {str(e)}")
                         continue