cleaning bunch of models, services, and routes for new line stuff

packages/core/models/masterLineData.model.ts

@@ -0,0 +1,22 @@
+import AudioClip from "./audioClip.model";
+import { LineMember } from "./line.model";
+import { ObjectId } from "mongodb";
+
+export default class MasterLineData {
+  constructor(
+    // attributes of conversation
+    public id: ObjectId, // id of the conversation
+
+    public createdDate: Date,
+    public lastUpdatedDate: Date,
+
+    // compiled data for easy client read
+    public currentUserMember?: LineMember,
+
+    public otherMembers?: LineMember[],
+
+    public audioClips: AudioClip[] = [],
+
+    public name?: string
+  ) {}
+}