add banbanmini backend

talkingq-url/implementations/base_service.py

@@ -0,0 +1,21 @@
+from typing import Any, Dict, Optional
+from services.config_manager import config_manager
+
+class BaseService:
+    """所有服务实现的基类，提供统一的配置处理功能"""
+    
+    def __init__(self, service_type: str, selected_role: Optional[Dict[str, Any]] = None):
+        self.selected_role = selected_role
+        self.service_type = service_type
+        self.config = config_manager.get_service_config(service_type, selected_role)
+    
+    def get_config(self, key: str, default_value: Any = None) -> Any:
+        """获取配置值，按照优先级规则"""
+        if key in self.config:
+            return self.config[key]
+        return config_manager.get_config_value(key, self.selected_role, default_value)
+    
+    def update_config(self, new_role_config: Dict[str, Any] = None) -> None:
+        """更新服务配置，用于动态切换角色时"""
+        self.selected_role = new_role_config if new_role_config else self.selected_role
+        self.config = config_manager.get_service_config(self.service_type, self.selected_role)