feat: restore sablog browse modes and clean imported HTML

Keep the public site readable after import (nbsp, highlighter, wrapping code, compact pager) and finish the admin extras already in this tree: sticky levels, preview, page cache, and live llms.txt.

Co-authored-by: Cursor <cursoragent@cursor.com>

themes/sablog/views/partials/footer.blade.php

@@ -3,6 +3,7 @@
     <p>&copy; {{ date('Y') }} {{ $siteName }}
     @if($siteIcp)<a href="https://beian.miit.gov.cn/" target="_blank" rel="noopener">{{ $siteIcp }}</a>@endif
     </p>
+    <p>@include('partials.feed-links')</p>
     <p>Powered by LaraLog · Laravel · Filament</p>
 </footer>
 </div>{{-- #outmain --}}

themes/sablog/views/partials/head.blade.php

@@ -12,6 +12,7 @@
     <meta name="generator" content="LaraLog">
     <link rel="canonical" href="{{ url()->current() }}">
     <link rel="alternate" type="application/rss+xml" title="{{ $siteName }}" href="{{ route('feed.rss') }}">
+    <link rel="alternate" type="text/plain" title="llms.txt" href="{{ route('feed.llms') }}">
     <link rel="stylesheet" href="{{ theme('asset', 'style.css') }}">
     @stack('head')
 @stack('theme:head')

themes/sablog/views/partials/header.blade.php

@@ -12,7 +12,7 @@
             <li class="{{ request()->routeIs('tags*') ? 'current_page_item' : '' }}"><a href="{{ route('tags') }}">标签</a></li>
             <li class="{{ request()->routeIs('links') ? 'current_page_item' : '' }}"><a href="{{ route('links') }}">友链</a></li>
             <li class="{{ request()->routeIs('comments') ? 'current_page_item' : '' }}"><a href="{{ route('comments') }}">评论</a></li>
-            <li><a href="{{ route('feed.rss') }}">RSS</a></li>
+            @include('partials.feed-links', ['asList' => true])
             @auth
                 <li><a href="{{ route('profile') }}">{{ auth()->user()->name }}</a></li>
                 <li>