Use attendance record date

The date is supposed to be what date the attendance record is referring
to, rather than the created at time.

Jira-Issue: MAV-2581

Author: thomasleese

app/lib/status_generator/vaccination.rb

@@ -64,7 +64,7 @@ def latest_date
     elsif latest_session_status_should_be_absent?
       [
         vaccination_records.map(&:performed_at).max&.to_date,
-        attendance_record&.created_at&.to_date
+        attendance_record&.date
       ].compact.max
     else
       vaccination_records.map(&:performed_at).max&.to_date

spec/lib/status_generator/vaccination_spec.rb

@@ -516,10 +516,8 @@
   describe "#latest_date" do
     subject(:date) { generator.latest_date }
 
-    let(:performed_at) { 1.day.ago.to_date }
-    let(:created_at) { 2.days.ago.to_date }
-
     let(:programme) { CachedProgramme.hpv }
+    let(:performed_at) { 1.day.ago.to_date }
 
     context "with a vaccination administered" do
       before do
@@ -597,10 +595,16 @@
 
     context "with absent from session attendance" do
       before do
-        create(:attendance_record, :absent, patient:, session:, created_at:)
+        create(
+          :attendance_record,
+          :absent,
+          patient:,
+          session:,
+          date: performed_at.to_date
+        )
       end
 
-      it { should eq(created_at) }
+      it { should eq(performed_at.to_date) }
     end
 
     context "with absent from both vaccination record and session attendance" do
@@ -623,7 +627,7 @@
             :absent,
             patient:,
             session:,
-            created_at: later_date
+            date: later_date
           )
         end
 
@@ -646,7 +650,7 @@
             :absent,
             patient:,
             session:,
-            created_at: earlier_date
+            date: earlier_date
           )
         end