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>

app/Console/Commands/SablogImport.php

@@ -2,19 +2,18 @@
 
 declare(strict_types=1);
 
-
 namespace App\Console\Commands;
 
 use App\Blog\Services\AttachmentImporter;
-use App\Models\Category;
-use App\Models\Comment;
-use App\Models\Link;
+use App\Blog\Services\PostContentRenderer;
+use App\Blog\Support\SablogHtmlNormalizer;
 use App\Models\Post;
 use App\Models\Setting;
 use App\Models\User;
 use App\Support\SlugGenerator;
 use Illuminate\Console\Command;
 use Illuminate\Support\Facades\DB;
+use League\HTMLToMarkdown\HtmlConverter;
 use PDO;
 use Spatie\Tags\Tag;
 
@@ -271,6 +270,7 @@ class SablogImport extends Command
                 'keywords' => $row['keywords'] ?: null,
                 'status' => $status,
                 'is_sticky' => (bool) $row['stick'],
+                'sticky_level' => ((bool) $row['stick']) ? 1 : 0,
                 'close_comment' => (bool) $row['closecomment'],
                 'read_password' => $row['readpassword'] ?: null,
                 'views' => (int) $row['views'],
@@ -362,15 +362,16 @@ class SablogImport extends Command
     {
         $this->info('转换文章内容为 Markdown ...');
 
-        $converter = new \League\HTMLToMarkdown\HtmlConverter([
+        $converter = new HtmlConverter([
             'strip_tags' => false,
             'hard_break' => true,
         ]);
-        $renderer = app(\App\Blog\Services\PostContentRenderer::class);
+        $renderer = app(PostContentRenderer::class);
+        $normalizer = app(SablogHtmlNormalizer::class);
 
         $count = 0;
         foreach (Post::query()->where('content_format', 'html')->cursor() as $post) {
-            $post->content = $converter->convert($renderer->toMarkdownSafeTokens($post->content));
+            $post->content = $normalizer->toMarkdown((string) $post->content, $converter, $renderer);
             $post->content_format = 'markdown';
             $post->save();
             $count++;