新增：webhook service

app/models/version.rb

@@ -55,6 +55,12 @@ class Version < ApplicationRecord
     User.select(:login, :lastname,:firstname, :nickname)&.find_by_id(self.user_id)
   end
 
+  def to_builder 
+    Jbuilder.new do |version|
+      version.(self, :id, :name, :description, :effective_date)
+    end
+  end
+
   private 
   def send_create_message_to_notice_system
     SendTemplateMessageJob.perform_later('ProjectMilestone', self.id, self.user_id) if Site.has_notice_menu?