Add: #600 NGルール (#602)

* Wip

* Wip

* Wip: History

* Wip: テストコード作成

* Fix test

* Wip

* Wip

* Wip

* Fix test

* Wip

* Wip

* Wip

* Wip

* なんとか完成、これから動作確認

* spell miss

* Change ng rule timings

* Fix test

* Wip

* Fix test

* Wip

* Fix form

* 表示まわりの改善

app/workers/scheduler/vacuum_scheduler.rb

@@ -26,6 +26,7 @@ class Scheduler::VacuumScheduler
       feeds_vacuum,
       imports_vacuum,
       list_statuses_vacuum,
+      ng_histories_vacuum,
     ]
   end
 
@@ -65,6 +66,10 @@ class Scheduler::VacuumScheduler
     Vacuum::ApplicationsVacuum.new
   end
 
+  def ng_histories_vacuum
+    Vacuum::NgHistoriesVacuum.new
+  end
+
   def content_retention_policy
     ContentRetentionPolicy.current
   end