tech(sidekiq): use sidekiq by default, clean transition code

Procfile.dev

@@ -1,3 +1,3 @@
-web: RAILS_QUEUE_ADAPTER=delayed_job bin/rails server -p 3000
+web: bin/rails server -p 3000
 jobs: bin/rake jobs:work
 vite: bin/vite dev

app/jobs/sidekiq_again_job.rb

@@ -1,14 +0,0 @@
-# frozen_string_literal: true
-
-class SidekiqAgainJob < ApplicationJob
-  self.queue_adapter = :sidekiq
-  queue_as :default
-
-  def perform(user, with_exception: false)
-    if with_exception
-      raise 'Nop'
-    end
-    Sentry.capture_message('this is a message from sidekiq')
-    UserMailer.new_account_warning(user).deliver_now
-  end
-end

config/env.example.optional

@@ -282,3 +282,6 @@ VITE_LIGHTGALLERY_LICENSE_KEY = ""
 # This email will be visible to users whom dossier had been fixed by our maintenance_tasks
 # By default we use CONTACT_EMAIL, but you can customize it
 MAINTENANCE_INSTRUCTEUR_EMAIL=""
+
+# want to stay on delayed job ? set as 'delayed_job'
+RAILS_QUEUE_ADAPTER="

config/environments/production.rb

@@ -83,7 +83,7 @@ Rails.application.configure do
   end
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
-  config.active_job.queue_adapter = :delayed_job
+  config.active_job.queue_adapter = ENV.fetch('RAILS_QUEUE_ADAPTER') { :sidekiq }
   # config.active_job.queue_name_prefix = "tps_production"
 
   config.action_mailer.perform_caching = false

config/initializers/transition_to_sidekiq.rb

@@ -1,35 +0,0 @@
-# frozen_string_literal: true
-
-if Rails.env.production? && SIDEKIQ_ENABLED
-  ActiveSupport.on_load(:after_initialize) do
-    [
-      ActiveStorage::AnalyzeJob,
-      ActiveStorage::PurgeJob,
-      AdminUpdateDefaultZonesJob,
-      APIEntreprise::Job,
-      AdminUpdateDefaultZonesJob,
-      BatchOperationEnqueueAllJob,
-      BatchOperationProcessOneJob,
-      ChampFetchExternalDataJob,
-      Cron::CronJob,
-      DestroyRecordLaterJob,
-      DossierIndexSearchTermsJob,
-      DossierOperationLogMoveToColdStorageBatchJob,
-      DossierRebaseJob,
-      HelpscoutCreateConversationJob,
-      ImageProcessorJob,
-      MaintenanceTasks::TaskJob,
-      Migrations::BackfillStableIdJob,
-      PriorizedMailDeliveryJob,
-      ProcedureExternalURLCheckJob,
-      ProcedureSVASVRProcessDossierJob,
-      ProcessStalledDeclarativeDossierJob,
-      ResetExpiringDossiersJob,
-      SendClosingNotificationJob,
-      VirusScannerJob,
-      WebHookJob
-    ].each do |job_class|
-      job_class.queue_adapter = :sidekiq
-    end
-  end
-end