Fix catalog order by created_at; Add catlog info to product index API

lib/generators/templates/views/share/_product_simple.json.jbuilder

 json.extract! product, :id, :title, :status, :status_zh, 
   :need_express, :cover_image
+json.catalog_list product.catalog_list if product.respond_to?(:catalog_list)
 json.default_series product.default_series, partial: 'shotengai/share/series_simple', as: :series

lib/shotengai/product.rb

@@ -144,7 +144,7 @@ module Shotengai
           }
 
           define_method(list_name) {
-            catalog_class.where(id: super().map { |tag| Shotengai::Catalog.parse_tag(tag) }).order(:nested_level)
+            catalog_class.unscope(:order).where(id: super().map { |tag| Shotengai::Catalog.parse_tag(tag) }).order(:nested_level)
           }
         end
       end