feat: add snjs package

packages/snjs/lib/Services/Items/TransactionalMutation.ts

@@ -0,0 +1,8 @@
+import * as Models from '@standardnotes/models'
+import { UuidString } from '../../Types/UuidString'
+
+export type TransactionalMutation = {
+  itemUuid: UuidString
+  mutate: (mutator: Models.ItemMutator) => void
+  mutationType?: Models.MutationType
+}