feat: add snjs package

packages/snjs/lib/ApplicationGroup/AppGroupCallback.ts

@@ -0,0 +1,6 @@
+import { AppGroupManagedApplication, DeviceInterface } from '@standardnotes/services'
+import { ApplicationDescriptor } from './ApplicationDescriptor'
+
+export type AppGroupCallback<D extends DeviceInterface = DeviceInterface> = {
+  applicationCreator: (descriptor: ApplicationDescriptor, deviceInterface: D) => Promise<AppGroupManagedApplication>
+}