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/src/out-log.html

@@ -16,6 +16,7 @@
           <div class="select"><select name="status"><option>Any status</option><option>sent</option><option>deferred</option><option>bounced</option><option>rate-limited</option></select></div>
           <button type="submit" class="button"><i class="ti ti-filter"></i>Filter</button>
         </form>
+        <a class="sp-help" href="help.html#log" title="What the statuses mean"><i class="ti ti-help-circle"></i></a>
       </div>
       <div class="table-container"><table class="table is-fullwidth is-hoverable">
         <thead><tr><th>Time, UTC</th><th>From</th><th>To</th><th>Subject</th><th>Status</th><th></th></tr></thead>