Store bounce details on delivery

app/jobs/receive_submission_bounces_and_complaints_job.rb

@@ -46,6 +46,7 @@ def process_bounce(delivery, submission, ses_message)
       delivery.update!(
         failed_at: bounced_timestamp,
         failure_reason: "bounced",
+        failure_details: bounce_object,
       )
     end
 

app/models/delivery.rb

@@ -32,6 +32,7 @@ def new_attempt!
       delivered_at: nil,
       failed_at: nil,
       failure_reason: nil,
+      failure_details: nil,
     )
   end
 end

db/migrate/20260506142828_add_failure_details_to_deliveries.rb

@@ -0,0 +1,5 @@
+class AddFailureDetailsToDeliveries < ActiveRecord::Migration[8.1]
+  def change
+    add_column :deliveries, :failure_details, :jsonb
+  end
+end