weapp: search api

app/views/weapps/searchs/index.json.jbuilder

@@ -6,5 +6,9 @@ json.results do
 
     json.title highlights.delete(:name)&.join('...') || obj.searchable_title
     json.cover url_to_avatar(obj)
+
+    if obj.is_a?(Course)
+      json.author_avatar_url url_to_avatar(obj.teacher)
+    end
   end
 end