Add SELF_DESTRUCT env variable to process self-destructions in the background (#26439)

app/views/auth/registrations/edit.html.haml

@@ -1,7 +1,11 @@
 - content_for :page_title do
   = t('settings.account_settings')
 
-= render partial: 'status', locals: { user: @user, strikes: @strikes }
+- if self_destruct?
+  .flash-message.warning
+    = t('auth.status.self_destruct', domain: ENV['LOCAL_DOMAIN'])
+- else
+  = render partial: 'status', locals: { user: @user, strikes: @strikes }
 
 %h3= t('auth.security')
 
@@ -32,7 +36,7 @@
 
 = render partial: 'sessions', object: @sessions
 
-- unless current_account.suspended?
+- unless current_account.suspended? || self_destruct?
   %hr.spacer/
 
   %h3= t('auth.migrate_account')

app/views/errors/self_destruct.html.haml

@@ -0,0 +1,20 @@
+- content_for :page_title do
+  = t('self_destruct.title')
+
+.simple_form
+  %h1.title= t('self_destruct.title')
+  %p.lead= t('self_destruct.lead_html', domain: ENV['LOCAL_DOMAIN'])
+
+.form-footer
+  %ul.no-list
+    - if user_signed_in?
+      %li= link_to t('settings.account_settings'), edit_user_registration_path
+    - else
+      - if controller_name != 'sessions'
+        %li= link_to_login t('auth.login')
+
+      - if controller_name != 'passwords' && controller_name != 'registrations'
+        %li= link_to t('auth.forgot_password'), new_user_password_path
+
+    - if user_signed_in?
+      %li= link_to t('auth.logout'), destroy_user_session_path, data: { method: :delete }