design: health-sockets - the inbound journal's socket on Health

The owner's "Все мелочи закрой" (2026-10-17), from the docs audit: the
inbound journal milter (Inbound › Log, port 25, fail-open) was the one
milter of the panel Health did not dial. Its row joins Milter sockets with
the inbound relay on, and Overview's card counts it (6 of 6 answering).

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

docs/assets/panel-redesign/panel/overview.html

@@ -82,7 +82,7 @@
         <a href="health.html"><span class="sp-h-icon"><i class="ti ti-server-cog"></i></span><span><span class="sp-h-name">Processes</span><span class="sp-h-value">5 of 5 running</span><span class="sp-h-sub">up 18 days</span></span></a>
         <a href="health.html" class="sp-warn"><span class="sp-h-icon"><i class="ti ti-certificate"></i></span><span><span class="sp-h-name">TLS certificate</span><span class="sp-h-value">Expires in 12 days</span><span class="sp-h-sub">renewal has not run</span></span></a>
         <a href="out-queue.html"><span class="sp-h-icon"><i class="ti ti-stack-2"></i></span><span><span class="sp-h-name">Queues</span><span class="sp-h-value">Both empty</span><span class="sp-h-sub">outbound and inbound</span></span></a>
-        <a href="health.html"><span class="sp-h-icon"><i class="ti ti-plug-connected"></i></span><span><span class="sp-h-name">Milter sockets</span><span class="sp-h-value">5 of 5 answering</span><span class="sp-h-sub">incl. the spam filter</span></span></a>
+        <a href="health.html"><span class="sp-h-icon"><i class="ti ti-plug-connected"></i></span><span><span class="sp-h-name">Milter sockets</span><span class="sp-h-value">6 of 6 answering</span><span class="sp-h-sub">incl. the spam filter</span></span></a>
         <a href="health.html"><span class="sp-h-icon"><i class="ti ti-arrows-exchange"></i></span><span><span class="sp-h-name">Reverse DNS</span><span class="sp-h-value">Forward = reverse</span><span class="sp-h-sub">203.0.113.25</span></span></a>
       </div>
     </div>