Ensure Gillick assessment is only shown on day

This is a follow up to
#6576
which missed that the UI would still show the Gillick assessment on a
different day.

Although the original bug has been fixed (self-consent cannot be given
on a different day), the child would show as Gillick assessed still,
which is not the case.

Jira-Issue: MAV-6741

Author: thomasleese

app/components/app_gillick_assessment_component.rb

@@ -19,6 +19,7 @@ def gillick_assessment
         .gillick_assessments
         .order(created_at: :desc)
         .for_session(session)
+        .where(date: Date.current)
         .for_programme(programme)
         .first
   end

spec/components/app_gillick_assessment_component_spec.rb

@@ -15,13 +15,25 @@
     let(:patient) { create(:patient) }
     let(:session) { create(:session, :today, programmes:) }
 
-    before { create(:gillick_assessment, :competent, patient:, session:) }
+    let(:date) { Date.current }
+
+    before do
+      create(:gillick_assessment, :competent, patient:, session:, date:)
+    end
 
     context "with a nurse user" do
       before { stub_authorization(allowed: true) }
 
-      it { should have_link("Edit Gillick competence") }
       it { should have_heading("Gillick assessment") }
+      it { should have_link("Edit Gillick competence") }
+      it { should have_content("Child assessed as Gillick competent") }
+
+      context "when the assessment is for a different day" do
+        let(:date) { Date.yesterday }
+
+        it { should have_link("Assess Gillick competence") }
+        it { should_not have_content("Child assessed as Gillick competent") }
+      end
     end
 
     context "with an admin user" do