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>

resources/views/filament/pages/languages.blade.php

@@ -0,0 +1,53 @@
+<x-filament-panels::page>
+    <x-filament::section heading="当前语言">
+        <dl class="grid gap-3 sm:grid-cols-3">
+            <div>
+                <dt class="text-sm text-gray-500 dark:text-gray-400">站点语言</dt>
+                <dd class="mt-1 text-lg font-medium">{{ $this->info['locale'] }}</dd>
+            </div>
+            <div>
+                <dt class="text-sm text-gray-500 dark:text-gray-400">回退语言</dt>
+                <dd class="mt-1 text-lg font-medium">{{ $this->info['fallback'] }}</dd>
+            </div>
+            <div>
+                <dt class="text-sm text-gray-500 dark:text-gray-400">假数据语言</dt>
+                <dd class="mt-1 text-lg font-medium">{{ $this->info['faker'] }}</dd>
+            </div>
+        </dl>
+        <p class="mt-4 text-sm text-gray-500 dark:text-gray-400">
+            改语言请编辑 <code>.env</code> 里的 <code>APP_LOCALE</code>，后台菜单文案本身是中文写死的。
+        </p>
+    </x-filament::section>
+
+    <x-filament::section heading="文章多语言" class="mt-6">
+        <x-filament::badge color="warning">未开通</x-filament::badge>
+        <p class="mt-3 text-sm text-gray-600 dark:text-gray-300">
+            现在每篇文章只有一份正文，没有中英两个版本可以切换。这个页面先让你看到现状，以后如果做文章翻译，会在这里列出语言和对应文章。
+        </p>
+    </x-filament::section>
+
+    <div class="mt-6 grid gap-6 lg:grid-cols-2">
+        <x-filament::section heading="站点语言包">
+            @if(count($this->info['app_files']) === 0)
+                <p class="text-sm text-gray-500 dark:text-gray-400">还没有站点自己的语言文件。</p>
+            @else
+                <div class="flex flex-wrap gap-2">
+                    @foreach($this->info['app_files'] as $locale)
+                        <x-filament::badge>{{ $locale }}</x-filament::badge>
+                    @endforeach
+                </div>
+            @endif
+        </x-filament::section>
+
+        <x-filament::section heading="Filament 后台语言包">
+            <p class="mb-3 text-sm text-gray-500 dark:text-gray-400">
+                这些是后台组件自带的翻译，不是文章内容翻译。
+            </p>
+            <div class="flex flex-wrap gap-2">
+                @foreach($this->info['filament_locales'] as $locale)
+                    <x-filament::badge color="gray">{{ $locale }}</x-filament::badge>
+                @endforeach
+            </div>
+        </x-filament::section>
+    </div>
+</x-filament-panels::page>