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/Filament/Resources/Posts/RelationManagers/CommentsRelationManager.php

@@ -5,10 +5,11 @@ declare(strict_types=1);
 namespace App\Filament\Resources\Posts\RelationManagers;
 
 use App\Models\Comment;
-use Filament\Forms\Components\TextInput;
+use Filament\Actions\Action;
 use Filament\Forms\Components\Textarea;
+use Filament\Forms\Components\TextInput;
 use Filament\Resources\RelationManagers\RelationManager;
-use Filament\Tables\Actions\Action;
+use Filament\Schemas\Schema;
 use Filament\Tables\Columns\TextColumn;
 use Filament\Tables\Table;
 
@@ -22,7 +23,7 @@ class CommentsRelationManager extends RelationManager
 
     protected static ?string $pluralModelLabel = '评论';
 
-    public function form(\Filament\Schemas\Schema $schema): \Filament\Schemas\Schema
+    public function form(Schema $schema): Schema
     {
         return $schema
             ->components([