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/Pages/BlogSettings.php

@@ -42,6 +42,7 @@ class BlogSettings extends Page
             // 外观
             'active_theme' => Setting::get('active_theme', config('themes.default')),
             'per_page' => Setting::get('per_page', config('blog.per_page')),
+            'home_view_mode' => Setting::get('home_view_mode', config('blog.home_view_mode', 'list')),
             'list_shownum' => Setting::get('list_shownum', '50'),
             'listtime' => Setting::get('listtime', 'Y-m-d'),
             'normaltime' => Setting::get('normaltime', 'Y-m-d H:i'),
@@ -102,6 +103,13 @@ class BlogSettings extends Page
                                     ->columnSpanFull()
                                     ->options(collect(app(\App\Blog\Support\ThemeManager::class)->all())->pluck('title', 'name')),
                                 TextInput::make('per_page')->label('首页每页文章数')->numeric(),
+                                Select::make('home_view_mode')
+                                    ->label('首页浏览模式')
+                                    ->options([
+                                        'list' => '列表（标题 + 摘要）',
+                                        'full' => '标准（全文）',
+                                    ])
+                                    ->helperText('前台右上角仍可临时切换，和老 sablog 的「标准 | 列表」一样'),
                                 TextInput::make('list_shownum')->label('列表每页数量')->numeric()->helperText('分类/标签/搜索等列表页'),
                                 TextInput::make('listtime')->label('列表时间格式')->placeholder('Y-m-d'),
                                 TextInput::make('normaltime')->label('详情时间格式')->placeholder('Y-m-d H:i'),