Add extended subtitle to AppLogEventComponent

We are going to use this to add more detail to activity log entries that
have both a performed_at and reported_at date so that it's clearer to
users what both timestamps mean.

Jira-Issue: MAV-3409
Jira-Issue: MAV-2848

Author: stevehook

app/components/app_activity_log_component.rb

@@ -410,12 +410,21 @@ def vaccination_events
           "Vaccination not given: #{vaccination_record.human_enum_name(:outcome)}"
         end
 
+      subtitle =
+        if vaccination_record.administered? &&
+              vaccination_record.reported_at.present? &&
+              (vaccination_record.sourced_from_manual_report? ||
+              vaccination_record.sourced_from_historical_upload?)
+          "Record added #{vaccination_record.reported_at.to_fs(:long)}. Vaccination given #{vaccination_record.performed_at.to_fs(:long)}."
+        end
+
       kept = {
         title:,
         body: vaccination_record.notes,
         at: vaccination_record.performed_at,
         by: vaccination_record.performed_by,
-        programmes: [vaccination_record.programme]
+        programmes: [vaccination_record.programme],
+        subtitle:
       }
 
       discarded =

app/components/app_log_event_component.rb

@@ -38,7 +38,8 @@ def initialize(
     by: nil,
     programmes: [],
     invalidated: false,
-    card: false
+    card: false,
+    subtitle: nil
   )
     @title = title
     @body = body
@@ -47,13 +48,14 @@ def initialize(
     @programmes = programmes
     @invalidated = invalidated
     @card = card
+    @subtitle = subtitle
   end
 
   private
 
   attr_reader :title, :body, :programmes, :invalidated, :card
 
   def subtitle
-    safe_join([@at, @by].compact, " · ".html_safe)
+    @subtitle || safe_join([@at, @by].compact, " · ".html_safe)
   end
 end

spec/components/app_activity_log_component_spec.rb

@@ -221,7 +221,7 @@
 
     include_examples "card",
                      title: "Historical vaccination record added",
-                     date: "6 January 2025",
+                     date: "Record added 15 December 2025 at 2:33pm. Vaccination given 6 January 2025.",
                      programme: "Flu"
 
     include_examples "card",