design: Help covers every section; boxes link to their topic

The owner's decision (2026-10-10): help is needed by almost every
section, not by Overview and Outbound alone. The Help mockup had six
topics while other screens already linked to topics it did not have
(#dmarc, #inbound).

  - src/help.html: seventeen topics in five boxes - Overview (checks,
    certificate, rdns), Outbound (dns, apps, limits, log, queue, dmarc),
    Inbound (inbound, upstream, recipients, filter), Server (backup,
    users, settings), Account (account) - one paragraph each, and the
    side menu lists them by group.
  - A box head gets the sp-help link where a topic now exists: health,
    out-domain-settings, out-app, out-log, out-message, out-queue, the
    three DMARC screens, in-domains, in-domain, backup, users, user,
    settings. No link on boxes that explain themselves (confirmations,
    the shown-once password, sign-in) and at most one per box.
  - outlines.json regenerated (check.py --write): only help changed -
    Outbound holds six topics, and Inbound, Server and Account are new
    boxes. 0 violations.

The dns, dmarc and account topics describe the report-address scheme the
owner decided the same day (no reports / the SelfPost address / a typed
address, no user default); the account and out-domain-settings mockups
are redrawn for it in the change that follows.

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

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

@@ -97,7 +97,7 @@
 
         <div class="column is-4">
           <div class="box">
-            <div class="sp-box-head"><span class="sp-no">02</span><h2>Client IP allow-list</h2><div class="sp-end"><span class="tag is-light">off</span></div></div>
+            <div class="sp-box-head"><span class="sp-no">02</span><h2>Client IP allow-list</h2><div class="sp-end"><span class="tag is-light">off</span></div><a class="sp-help" href="help.html#apps" title="What an application is"><i class="ti ti-help-circle"></i></a></div>
             <div class="sp-box-body">
               <div class="field"><label class="checkbox"><input type="checkbox" name="auth_ip_restrict"> Restrict to listed IPs</label></div>
               <div class="field"><label class="label" for="ips">Allowed client IPs</label>
@@ -109,7 +109,7 @@
 
         <div class="column is-4">
           <div class="box">
-            <div class="sp-box-head"><span class="sp-no">03</span><h2>Rate limit</h2><div class="sp-end"><span class="tag is-success is-light">active</span></div></div>
+            <div class="sp-box-head"><span class="sp-no">03</span><h2>Rate limit</h2><div class="sp-end"><span class="tag is-success is-light">active</span></div><a class="sp-help" href="help.html#limits" title="Levels 1 and 2"><i class="ti ti-help-circle"></i></a></div>
             <div class="sp-box-body">
               <div class="field"><label class="label" for="rmode">Limit mode</label>
                 <div class="control"><div class="select is-fullwidth"><select id="rmode" name="rl_mode"><option>Use the domain limit</option><option selected>Manual</option><option>Auto (from statistics)</option></select></div></div></div>