feat(storage): support cloud storage

app/storage/base.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+import abc
+
+
+class StorageService(abc.ABC):
+    @abc.abstractmethod
+    async def write_file(
+        self,
+        file_path: str,
+        content: bytes,
+        content_type: str = "application/octet-stream",
+        cache_control: str = "public, max-age=31536000",
+    ) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    async def read_file(self, file_path: str) -> bytes:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    async def delete_file(self, file_path: str) -> None:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    async def is_exists(self, file_path: str) -> bool:
+        raise NotImplementedError
+
+    @abc.abstractmethod
+    async def get_file_url(self, file_path: str) -> str:
+        raise NotImplementedError
+
+    async def close(self) -> None:
+        pass