feat: add models package

packages/models/src/Domain/Local/RootKey/RootKeyContent.ts

@@ -0,0 +1,12 @@
+import { ItemContent } from '../../Abstract/Content/ItemContent'
+import { ProtocolVersion, AnyKeyParamsContent } from '@standardnotes/common'
+
+export interface RootKeyContentSpecialized {
+  version: ProtocolVersion
+  masterKey: string
+  serverPassword?: string
+  dataAuthenticationKey?: string
+  keyParams: AnyKeyParamsContent
+}
+
+export type RootKeyContent = RootKeyContentSpecialized & ItemContent