refactor: 💡 use recrusive listing for desktop queries

and add mock rescursive support for scopes, targets, and sessions

addons/api/addon/models/target.js

@@ -45,6 +45,14 @@ export default class TargetModel extends GeneratedTargetModel {
       .filter(s => s && (s.target_id === this.id));
   }
 
+  /**
+   * The project associated with this target (if already loaded).
+   * @type {ScopeModel}
+   */
+  get project() {
+    return this.store.peekRecord('scope', this.scopeID);
+  }
+
   /**
    * True if any sessions associated with this target are active or pending.
    * @type {boolean}