refactoring

Resolve #7779

packages/backend/src/misc/fetch-proxy-account.ts

@@ -0,0 +1,9 @@
+import { fetchMeta } from './fetch-meta';
+import { ILocalUser } from '@/models/entities/user';
+import { Users } from '@/models/index';
+
+export async function fetchProxyAccount(): Promise<ILocalUser | null> {
+	const meta = await fetchMeta();
+	if (meta.proxyAccountId == null) return null;
+	return await Users.findOneOrFail(meta.proxyAccountId) as ILocalUser;
+}