design: Full backup says what the panel's archive leaves out

Owner, 2026-10-11: the archive made from the panel comes without the Postfix queue (variant 1). The Full backup box and the Help topic say so, and name the other thing the panel may not read - a certificate file, usually the private key - and the command that takes both.

check.py: 0 violations; outlines.json unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/assets/panel-redesign/panel/src/backup.html

@@ -12,7 +12,7 @@
         <div class="box">
           <div class="sp-box-head"><span class="sp-no">01</span><h2>Full backup</h2><a class="sp-help" href="help.html#backup" title="Backups, encryption and restore"><i class="ti ti-help-circle"></i></a></div>
           <div class="sp-box-body">
-            <p class="mb-3"><code>data/</code> (database, DKIM keys, credentials, the queue), <code>docker-compose.yml</code>, <code>.env</code> and <code>certs/</code> in one archive. Restore into an empty project directory and start the <strong>same SelfPost version</strong>. The reverse-proxy vhost is not included.</p>
+            <p class="mb-3"><code>data/</code> (database, DKIM keys, credentials), <code>docker-compose.yml</code>, <code>.env</code> and <code>certs/</code> in one archive, without the Postfix queue and without a certificate file the panel may not read. Restore into an empty project directory and start the <strong>same SelfPost version</strong>. The reverse-proxy vhost is not included.</p>
             <form class="sp-form" method="post" action="#">
               <div class="field"><label class="checkbox"><input type="checkbox" name="encrypt" checked> Encrypt with a password (<code>.spbk</code>)</label></div>
               <div class="sp-pair">