feat: use stream for template migrations (#16700)

server/test/repositories/asset.repository.mock.ts

@@ -44,5 +44,7 @@ export const newAssetRepositoryMock = (): Mocked<RepositoryInterface<AssetReposi
     detectOfflineExternalAssets: vitest.fn(),
     filterNewExternalAssetPaths: vitest.fn(),
     updateByLibraryId: vitest.fn(),
+    streamStorageTemplateAssets: vitest.fn(),
+    getStorageTemplateAsset: vitest.fn(),
   };
 };