design: phone-desktop-mode - a Menu with folded sections below 1024 px

The owner, 2026-10-16, of two ways for the navigation of a narrow screen
(pictures at 390 and 980 px): "Вариант 1. Но меню выглядит длинной
простынёй. Там бы сделать сворачивание разделов."

The cause, measured: the bar's menu was always open (navbar-menu
is-active, no burger), and Bulma lays it out below 1024 px as a sheet of
every section's pages, filling the first screen - on every phone, and on
a phone in "desktop site" mode (about 980 px) under columns that Bulma
puts side by side from 769 px; and a container has no side margin below
1024 px, so the page met the screen's edge.

Now, below 1024 px: the bar's menu is hidden (no is-active), and a Menu at
the right of the brand opens a panel over the page - Overview, then each
section as a fold, the current one open, the user's last (Account, Help,
Sign out). <details> all through: no script, like the folded DNS records.
The page and the strip of sibling pages get a 1rem gutter. From 1024 px
nothing changes. check.py: 0 violations; outlines unchanged.

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

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

@@ -12,8 +12,8 @@
 <body>
 <nav class="navbar is-primary" aria-label="main navigation">
   <div class="container">
-    <div class="navbar-brand"><a class="navbar-item" href="overview.html"><img src="../../selfpost-wordmark.svg" alt="SelfPost"></a></div>
-    <div class="navbar-menu is-active">
+    <div class="navbar-brand"><a class="navbar-item" href="overview.html"><img src="../../selfpost-wordmark.svg" alt="SelfPost"></a><details class="sp-touchnav"><summary>Menu</summary><div class="sp-touchnav-panel"><a href="overview.html">Overview</a><details class="sp-touchnav-group"><summary>Outbound</summary><a href="out-domains.html"><i class="ti ti-world-upload"></i>Domains</a><a href="out-log.html"><i class="ti ti-list-details"></i>Log</a><a href="out-queue.html"><i class="ti ti-stack-2"></i>Queue</a><a href="dmarc.html"><i class="ti ti-report-analytics"></i>DMARC reports</a></details><details class="sp-touchnav-group"><summary>Inbound</summary><a href="in-domains.html"><i class="ti ti-world-download"></i>Domains</a><a href="in-log.html"><i class="ti ti-list-details"></i>Log</a><a href="in-queue.html"><i class="ti ti-stack-2"></i>Queue</a><a href="in-quarantine.html"><i class="ti ti-mail-pause"></i>Quarantine</a><a href="in-filter-lists.html"><i class="ti ti-filter"></i>Filter lists</a></details><details class="sp-touchnav-group"><summary>Server</summary><a href="health.html"><i class="ti ti-heartbeat"></i>Health</a><a href="preflight.html"><i class="ti ti-checklist"></i>Preflight</a><a href="system-log.html"><i class="ti ti-file-text"></i>System log</a><a href="backup.html"><i class="ti ti-archive"></i>Backup</a><a href="users.html"><i class="ti ti-users"></i>Users</a><a href="settings.html"><i class="ti ti-settings"></i>Settings</a></details><details class="sp-touchnav-group" open><summary><i class="ti ti-user-circle"></i>admin</summary><a href="account.html"><i class="ti ti-key"></i>Account</a><a href="help.html"><i class="ti ti-help"></i>Help</a><form method="post" action="login.html"><button type="submit"><i class="ti ti-logout"></i>Sign out</button></form></details></div></details></div>
+    <div class="navbar-menu">
       <div class="navbar-start">
         <a class="navbar-item" href="overview.html">Overview</a>
         <div class="navbar-item has-dropdown is-hoverable">