feat: allow storage endpoint updates and deletion

src/services/storage.rs

@@ -522,6 +522,22 @@ pub async fn test_endpoint(state: &AppState, endpoint: &StorageEndpoint) -> Resu
     Ok(())
 }
 
+pub async fn test_existing_object(
+    state: &AppState,
+    endpoint: &StorageEndpoint,
+    key: &str,
+) -> Result<(), AppError> {
+    let client = client_for(state, endpoint, EndpointKind::Internal)?;
+    client
+        .head_object()
+        .bucket(&endpoint.bucket)
+        .key(key)
+        .send()
+        .await
+        .map_err(|err| storage_error("S3 历史对象访问测试失败", err))?;
+    Ok(())
+}
+
 fn client_for(
     state: &AppState,
     endpoint: &StorageEndpoint,