Initial project import

services/storage/base.py

@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+from abc import ABC, abstractmethod
+from typing import Any
+
+
+class StorageBackend(ABC):
+    """抽象存储后端基类"""
+
+    @abstractmethod
+    def load_accounts(self) -> list[dict[str, Any]]:
+        """加载所有账号数据"""
+        pass
+
+    @abstractmethod
+    def save_accounts(self, accounts: list[dict[str, Any]]) -> None:
+        """保存所有账号数据"""
+        pass
+
+    @abstractmethod
+    def load_auth_keys(self) -> list[dict[str, Any]]:
+        """加载所有鉴权密钥数据"""
+        pass
+
+    @abstractmethod
+    def save_auth_keys(self, auth_keys: list[dict[str, Any]]) -> None:
+        """保存所有鉴权密钥数据"""
+        pass
+
+    @abstractmethod
+    def health_check(self) -> dict[str, Any]:
+        """健康检查，返回存储后端状态"""
+        pass
+
+    @abstractmethod
+    def get_backend_info(self) -> dict[str, Any]:
+        """获取存储后端信息"""
+        pass