design: notification-mail-recheck - Re-check DNS on Settings

The owner, 2026-10-16: "Да, бери notification-mail-recheck, потом режь
2.9.0."

Server › Settings gets Re-check DNS in its page head, as an outbound
domain's page has it beside its own DNS records box; the Notification
mail box's end slot says when the records were checked ("The server's
own name · checked 3 min ago"), as the domain's DNS box does. The help's
Notifications topic says Settings shows whether the records are in place
and re-checks them. The button sits in the page head rather than in the
box head: box heads hold a note, a tag, a link or a filter form, and the
page head is where the domain page and Health put the same action.

outlines.json: settings "head" -> "head+actions". check.py: 0 violations.

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

docs/assets/panel-redesign/panel/outlines.json

@@ -385,7 +385,7 @@
   "box[Send a test e-mail]:body"
  ],
  "settings": [
-  "head",
+  "head+actions",
   {
    "columns": [
     {