add hidden by user column on dossiers

db/migrate/20211110095853_add_hide_by_user_at_on_dossiers.rb

@@ -0,0 +1,5 @@
+class AddHideByUserAtOnDossiers < ActiveRecord::Migration[6.1]
+  def change
+    add_column :dossiers, :hidden_by_user_at, :datetime
+  end
+end

db/schema.rb

@@ -324,6 +324,7 @@ ActiveRecord::Schema.define(version: 2021_11_24_111429) do
     t.bigint "dossier_transfer_id"
     t.datetime "identity_updated_at"
     t.datetime "depose_at"
+    t.datetime "hidden_by_user_at"
     t.index ["archived"], name: "index_dossiers_on_archived"
     t.index ["dossier_transfer_id"], name: "index_dossiers_on_dossier_transfer_id"
     t.index ["groupe_instructeur_id"], name: "index_dossiers_on_groupe_instructeur_id"