fix cloudflare r2 adapter range requests

app/src/adapter/cloudflare/index.ts

@@ -13,6 +13,8 @@ export {
    type BindingMap,
 } from "./bindings";
 export { constants } from "./config";
+export { StorageR2Adapter } from "./storage/StorageR2Adapter";
+export { registries } from "bknd";
 
 // for compatibility with old code
 export function d1<DB extends D1Database | D1DatabaseSession = D1Database>(