feat(tts): prevent config saving for dict-based initialization

- Add `_from_dict` flag to track dict-based initialization
- Skip saving configuration files when initialized with a dictionary

GPT_SoVITS/TTS_infer_pack/TTS.py

@@ -297,6 +297,9 @@ class TTS_Config:
     # "auto_yue",#多语种启动切分识别语种
 
     def __init__(self, configs: Union[dict, str] = None):
+        # 标记是否从 dict 初始化，若是则不保存配置文件
+        self._from_dict = isinstance(configs, dict)
+        
         # 设置默认配置文件路径
         configs_base_path: str = "GPT_SoVITS/configs/"
         os.makedirs(configs_base_path, exist_ok=True)
@@ -375,6 +378,10 @@ class TTS_Config:
         return configs
 
     def save_configs(self, configs_path: str = None) -> None:
+        # 从 dict 初始化时不保存配置文件
+        if self._from_dict:
+            return
+        
         configs = deepcopy(self.default_configs)
         if self.configs is not None:
             configs["custom"] = self.update_configs()