CLDC-4200: Add mechanism for custom CYA header labels

also simplify the view logic for check answers summary list

app/components/check_answers_summary_list_card_component.html.erb

@@ -1,8 +1,8 @@
 <% if applicable_questions.first %>
   <div class="govuk-summary-card govuk-!-margin-bottom-6">
-    <% if applicable_questions.first.check_answers_card_number != 0 && applicable_questions.first.check_answers_card_number.present? %>
+    <% if check_answers_card_label(applicable_questions.first).present? %>
       <div class="govuk-summary-card__title-wrapper">
-        <h3 class="govuk-summary-card__title"><%= check_answers_card_title(applicable_questions.first) %></h3>
+        <h3 class="govuk-summary-card__title"><%= check_answers_card_label(applicable_questions.first) %></h3>
       </div>
     <% end %>
 

app/components/check_answers_summary_list_card_component.rb

@@ -22,7 +22,10 @@ class CheckAnswersSummaryListCardComponent < ViewComponent::Base
     [question.question_number_string, question.check_answer_label.to_s.presence || question.header.to_s].compact.join(" - ")
   end
 
-  def check_answers_card_title(question)
+  def check_answers_card_label(question)
+    return question.check_answers_card_title if question.check_answers_card_title.present?
+    return unless question.check_answers_card_number.present? && question.check_answers_card_number != 0
+
     return "Lead tenant" if question.form.type == "lettings" && question.check_answers_card_number == 1
     return "Buyer #{question.check_answers_card_number}" if question.check_answers_card_number <= number_of_buyers
 

app/models/form/question.rb

@@ -6,7 +6,7 @@ class Form::Question
                 :conditional_for, :readonly, :answer_options, :page,
                 :inferred_answers, :hidden_in_check_answers, :inferred_check_answers_value,
                 :top_guidance_partial, :bottom_guidance_partial, :prefix, :suffix,
-                :requires_js, :fields_added, :derived, :check_answers_card_number,
+                :requires_js, :fields_added, :derived, :check_answers_card_number, :check_answers_card_title,
                 :unresolved_hint_text, :question_number, :hide_question_number_on_page,
                 :plain_label, :error_label, :strip_commas