Add publish_draft feature flag

app/models/procedure.rb

@@ -113,6 +113,11 @@ class Procedure < ApplicationRecord
     publiee_ou_archivee?
   end
 
+  # This method is needed for transition. Eventually this will be the same as brouillon?.
+  def brouillon_avec_lien?
+    Flipflop.publish_draft? && brouillon? && procedure_path.present?
+  end
+
   def publiee_ou_archivee?
     publiee? || archivee?
   end

config/features.rb

@@ -16,6 +16,7 @@ Flipflop.configure do
   end
 
   feature :web_hook
+  feature :publish_draft
 
   feature :new_dossier_details,
     title: "Nouvelle page « Dossier »"