design: notifications on Account, Server > Settings and Server > Health

Accepted by the owner on 2026-10-12 from screenshots, after two changes of
his: DKIM for the server's own name as well as SPF ("we need the best
deliverability for these messages"), and the records themselves under
Settings with only their state on Health.

- account: a checkbox "Send me notifications" in the Profile box, under the
  e-mail it writes to. No box of its own, no choice per event.
- settings: box 03 Notifications with the instance switch; box 04
  Notification mail with the two DNS records of the server's own name, DKIM
  and SPF, drawn with the record component of a domain's DNS page. Sending
  rate limits move to the left column as box 02.
- health: card 06 Notification mail - the state of each record and a link to
  Settings - beside Configuration, now 07, each half the width.
- help: a Notifications topic (what is sent, when, to whom, what makes it
  arrive); Settings and Your account each gain a clause.

outlines.json rewritten with check.py --write: the structure of settings and
health changed. build.py: 35 pages; check.py: 32 screens, 52 sp- classes,
0 violations. The plan records both of his changes; step 1 of 10.

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

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

@@ -108,7 +108,20 @@
     }
    ]
   },
-  "box[Configuration]:body"
+  {
+   "columns": [
+    {
+     "is-6": [
+      "box[Notification mail]:table+body"
+     ]
+    },
+    {
+     "is-6": [
+      "box[Configuration]:body"
+     ]
+    }
+   ]
+  }
  ],
  "help": [
   "head",
@@ -124,7 +137,7 @@
       "box[Overview]:help×3",
       "box[Outbound]:help×6",
       "box[Inbound]:help×6",
-      "box[Server]:help×3",
+      "box[Server]:help×4",
       "box[Account]:help"
      ]
     }
@@ -406,12 +419,14 @@
      "columns": [
       {
        "is-6": [
-        "box[Log retention]:body"
+        "box[Log retention]:body",
+        "box[Sending rate limits]:body"
        ]
       },
       {
        "is-6": [
-        "box[Sending rate limits]:body"
+        "box[Notifications]:body",
+        "box[Notification mail]:record×2"
        ]
       }
      ]