working send request and such

packages/core/requests/updateRelationshipState.request.ts

@@ -0,0 +1,9 @@
+import { ObjectId } from "mongodb";
+import { RelationshipState } from "../models/relationship.model";
+
+export default class UpdateRelationshipStateRequest {
+  constructor(
+    public relationshipId: ObjectId,
+    public newState: RelationshipState
+  ) {}
+}