design: the preflight mockup goes - the page was dropped on 2026-10-13

Owner, 2026-10-18: "Чисти этот хвост." Preflight as a page of its own was
dropped on 2026-10-13 (roadmap.md § Dropped): its installation checks went
to Server › Health (health-setup-checks, 2.11.0) and its test e-mail to a
form of its own (test-email, 2.12.0). The mockup still drew it and every
mockup's navigation still linked it.

- panel/src/preflight.html and its built page deleted; build.py's Server
  group loses the entry, and the 39 pages are rebuilt (each one only loses
  that link, in the navbar and the touch menu).
- check.py --write: outlines.json loses the "preflight" key; 31 screens,
  0 violations.
- index.html and panel-redesign.md § Room for roadmap items no longer list it.

The guard's deferredScreens entry goes in the next commit, on its own.

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

docs/assets/panel-redesign/panel/out-queue.html

@@ -12,7 +12,7 @@
 <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><details class="sp-touchnav"><summary>Menu</summary><div class="sp-touchnav-panel"><a href="overview.html">Overview</a><details class="sp-touchnav-group" open><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" aria-current="page"><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"><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-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" open><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" aria-current="page"><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="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"><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>
@@ -39,7 +39,6 @@
           <a class="navbar-link" href="health.html">Server</a>
           <div class="navbar-dropdown">
             <a class="navbar-item" href="health.html"><i class="ti ti-heartbeat"></i>Health</a>
-            <a class="navbar-item" href="preflight.html"><i class="ti ti-checklist"></i>Preflight</a>
             <a class="navbar-item" href="system-log.html"><i class="ti ti-file-text"></i>System log</a>
             <a class="navbar-item" href="backup.html"><i class="ti ti-archive"></i>Backup</a>
             <a class="navbar-item" href="users.html"><i class="ti ti-users"></i>Users</a>