chore: Docs, define additional client-side relations

app/models/Star.ts

@@ -1,26 +1,44 @@
 import { observable } from "mobx";
 import type StarsStore from "~/stores/StarsStore";
+import Collection from "./Collection";
+import Document from "./Document";
 import Model from "./base/Model";
 import Field from "./decorators/Field";
+import Relation from "./decorators/Relation";
 
 class Star extends Model {
-  id: string;
-
+  /** The sort order of the star */
   @Field
   @observable
   index: string;
 
-  documentId: string;
+  /** The document ID that is starred. */
+  documentId?: string;
 
+  /** The document that is starred. */
+  @Relation(() => Document, { onDelete: "cascade" })
+  document?: Document;
+
+  /** The collection ID that is starred. */
   collectionId: string;
 
+  /** The collection that is starred. */
+  @Relation(() => Collection, { onDelete: "cascade" })
+  collection: Collection;
+
   store: StarsStore;
 
+  /**
+   * Returns the next star in the list, or undefined if this is the last star.
+   */
   next(): Star | undefined {
     const index = this.store.orderedData.indexOf(this);
     return this.store.orderedData[index + 1];
   }
 
+  /**
+   * Returns the previous star in the list, or undefined if this is the first star.
+   */
   previous(): Star | undefined {
     const index = this.store.orderedData.indexOf(this);
     return this.store.orderedData[index + 1];