fixup! CLDC-4202: Extract person question count to the form definition

also update age_known

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

@@ -23,10 +23,16 @@ class Form::Lettings::Questions::AgeKnown < ::Form::Question
     base_question_number = case form.start_date.year
                            when 2023
                              31
-                           else
+                           when 2024
+                             30
+                           when 2025
                              30
+                           when 2026
+                             27
+                           else
+                             27
                            end
 
-    base_question_number + (4 * @person_index)
+    base_question_number + (form.person_question_count * @person_index)
   end
 end

spec/models/form/lettings/questions/age_known_spec.rb

@@ -4,7 +4,7 @@ RSpec.describe Form::Lettings::Questions::AgeKnown, type: :model do
   subject(:question) { described_class.new(nil, question_definition, page, person_index:) }
 
   let(:question_definition) { nil }
-  let(:page) { instance_double(Form::Page, subsection: instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 4)))) }
+  let(:page) { instance_double(Form::Page, subsection: instance_double(Form::Subsection, form: instance_double(Form, start_date: Time.zone.local(2023, 4, 4), person_question_count: 5))) }
   let(:person_index) { 2 }
 
   it "has correct page" do