added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/frontend/app/models/topic-following.js

@@ -0,0 +1,20 @@
+import DS from 'ember-data';
+import Ember from 'ember';
+import Topicable from 'flaredown/mixins/topicable';
+
+const {
+  attr,
+  Model,
+} = DS;
+
+const {
+  computed: {
+    alias,
+  },
+} = Ember;
+
+export default Model.extend(Topicable, {
+  updatedAt: attr('date'),
+
+  topicsCount: alias('topics.length'),
+});