TEF-1017: add inputmode="numeric" to day and year date inputs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dfl

app/components/memorable_date_component.html.erb

@@ -73,6 +73,7 @@
               id: input_id(3),
               placeholder: @placeholder_day,
               class: "w-12",
+              inputmode: "numeric",
               aria: {invalid: invalid, describedby: described_by_value(help: @helper_text.present?)}.compact
             ) %>
     </div>
@@ -85,6 +86,7 @@
               id: input_id(1),
               placeholder: @placeholder_year,
               class: "w-18",
+              inputmode: "numeric",
               aria: {invalid: invalid, describedby: described_by_value(help: @helper_text.present?)}.compact
             ) %>
     </div>

test/components/memorable_date_component_test.rb

@@ -234,6 +234,13 @@ def test_valid_date_renders_from_the_cast_value
     assert_selector "input[name='date_picker_test_model[my_date(2i)]'][value='3']", visible: :all
   end
 
+  def test_day_and_year_fields_have_numeric_inputmode
+    render_inline(MemorableDateComponent.new(form: build_form, method: :my_date, label: "Date of birth"))
+
+    assert_selector "input#date_picker_test_model_my_date_3i[inputmode='numeric']"
+    assert_selector "input#date_picker_test_model_my_date_1i[inputmode='numeric']"
+  end
+
   def test_month_options_render_in_spanish_when_locale_is_es
     I18n.with_locale(:es) do
       render_inline(MemorableDateComponent.new(