feat: add HandoverDate check to saledate question

app/models/form/sales/subsections/setup.rb

@@ -10,6 +10,7 @@ class Form::Sales::Subsections::Setup < ::Form::Subsection
       Form::Common::Pages::Organisation.new(nil, nil, self),
       Form::Common::Pages::CreatedBy.new(nil, nil, self),
       Form::Sales::Pages::SaleDate.new(nil, nil, self),
+      Form::Sales::Pages::HandoverDateCheck.new("handover_date_sale_date_check", nil, self),
       Form::Sales::Pages::PurchaserCode.new(nil, nil, self),
       Form::Sales::Pages::OwnershipScheme.new(nil, nil, self),
       Form::Sales::Pages::SharedOwnershipType.new(nil, nil, self),

spec/models/form/sales/subsections/setup_spec.rb

@@ -17,6 +17,7 @@ RSpec.describe Form::Sales::Subsections::Setup, type: :model do
         organisation
         created_by
         completion_date
+        handover_date_sale_daet_check
         purchaser_code
         ownership_scheme
         shared_ownership_type