CLDC-4142: Add final question numbers

app/models/form.rb

@@ -357,4 +357,12 @@ class Form
   def start_year_2026_or_later?
     start_date && start_date.year >= 2026
   end
+
+  def person_question_count
+    if start_year_2026_or_later?
+      5
+    else
+      4
+    end
+  end
 end

app/models/form/lettings/questions/gender_description.rb

@@ -4,13 +4,19 @@ class Form::Lettings::Questions::GenderDescription < ::Form::Question
     @id = "gender_description#{person_index}"
     @type = "text"
     @check_answers_card_number = person_index
-    @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
     @person_index = person_index
+    @question_number = question_number
   end
 
   def derived?(log)
     log.public_send("gender_same_as_sex#{@person_index}") != 2
   end
 
-  QUESTION_NUMBER_FROM_YEAR = { 2026 => 0 }.freeze
+  def question_number
+    return 32 if @person_index == 1
+
+    base_question_number = 30
+
+    base_question_number + (form.person_question_count * @person_index)
+  end
 end

app/models/form/lettings/questions/gender_same_as_sex.rb

@@ -4,9 +4,9 @@ class Form::Lettings::Questions::GenderSameAsSex < ::Form::Question
     @id = "gender_same_as_sex#{person_index}"
     @type = "radio"
     @check_answers_card_number = person_index
-    @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
     @conditional_for = { "gender_description#{person_index}" => [2] }
     @person_index = person_index
+    @question_number = question_number
   end
 
   def answer_options
@@ -18,5 +18,11 @@ class Form::Lettings::Questions::GenderSameAsSex < ::Form::Question
     }.freeze
   end
 
-  QUESTION_NUMBER_FROM_YEAR = { 2026 => 0 }.freeze
+  def question_number
+    return 32 if @person_index == 1
+
+    base_question_number = 30
+
+    base_question_number + (form.person_question_count * @person_index)
+  end
 end