feat(api): add listing workspace users

packages/api/src/Domain/Response/Workspace/WorkspaceUserListResponse.ts

@@ -0,0 +1,9 @@
+import { Either } from '@standardnotes/common'
+
+import { HttpErrorResponseBody } from '../../Http/HttpErrorResponseBody'
+import { HttpResponse } from '../../Http/HttpResponse'
+import { WorkspaceUserListResponseBody } from './WorkspaceUserListResponseBody'
+
+export interface WorkspaceUserListResponse extends HttpResponse {
+  data: Either<WorkspaceUserListResponseBody, HttpErrorResponseBody>
+}

packages/api/src/Domain/Response/Workspace/WorkspaceUserListResponseBody.ts

@@ -0,0 +1,5 @@
+import { WorkspaceUser } from '@standardnotes/models'
+
+export type WorkspaceUserListResponseBody = {
+  users: Array<WorkspaceUser>
+}