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>

routes/web.php

@@ -10,10 +10,14 @@ use App\Blog\Controllers\FeedController;
 use App\Blog\Controllers\HomeController;
 use App\Blog\Controllers\LegacyController;
 use App\Blog\Controllers\LinkController;
+use App\Blog\Controllers\LlmsController;
 use App\Blog\Controllers\PostController;
 use App\Blog\Controllers\SearchController;
 use App\Blog\Controllers\TagController;
 use App\Blog\Controllers\ThemeAssetController;
+use App\Models\Category;
+use App\Models\Post;
+use Illuminate\Pagination\Paginator;
 use Illuminate\Support\Facades\Route;
 
 /*
@@ -33,18 +37,22 @@ Route::get('/', function () {
 
 // sablog 首页分页格式：/index-{page}.shtml
 Route::get('/index-{page}.shtml', function (string $page) {
-    \Illuminate\Pagination\Paginator::currentPageResolver(fn () => max(1, (int) $page));
+    Paginator::currentPageResolver(fn () => max(1, (int) $page));
 
     return app(HomeController::class)->index();
 })->whereNumber('page');
 
+Route::get('/posts/{slug}.md', [LlmsController::class, 'postMarkdown'])
+    ->where('slug', '[^/]+')
+    ->name('geo.post.markdown');
+
 Route::get('/posts/{slug}.shtml', function (string $slug) {
-    $post = \App\Models\Post::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
+    $post = Post::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
 
     return $post ? redirect()->route('posts.show', $post->id, 301) : abort(404);
 })->where('slug', '[^/]+');
 Route::get('/posts/{slug}', function (string $slug) {
-    $post = \App\Models\Post::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
+    $post = Post::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
 
     return $post ? redirect()->route('posts.show', $post->id, 301) : abort(404);
 })->where('slug', '[^/]+');
@@ -55,16 +63,15 @@ Route::get('/show-{id}-{page}.shtml', [PostController::class, 'show'])->whereNum
 Route::post('/posts/{post}/comments', [CommentController::class, 'store'])->name('comments.store');
 
 // 浏览量统计（独立端点，避开整页缓存，保证实时）
-Route::get('/track-view/{post}', fn (\App\Models\Post $post) => response($post->increment('views') ? '' : '', 204))->name('track-view');
-
+Route::get('/track-view/{post}', fn (Post $post) => response($post->increment('views') ? '' : '', 204))->name('track-view');
 
 Route::get('/category/{slug}.shtml', function (string $slug) {
-    $category = \App\Models\Category::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
+    $category = Category::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
 
     return $category ? redirect()->route('category.show', $category->id, 301) : abort(404);
 })->where('slug', '[^/]+');
 Route::get('/category/{slug}', function (string $slug) {
-    $category = \App\Models\Category::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
+    $category = Category::query()->where('slug', $slug)->orWhere('id', (int) $slug)->first();
 
     return $category ? redirect()->route('category.show', $category->id, 301) : abort(404);
 })->where('slug', '[^/]+');
@@ -120,7 +127,7 @@ Route::get('/profile', fn () => redirect()->route('profile', [], 301))->middlewa
 
 /*
 |--------------------------------------------------------------------------
-| 稳定路径：RSS / Sitemap / Robots
+| 稳定路径：RSS / Sitemap / Robots / llms.txt
 |--------------------------------------------------------------------------
 */
 
@@ -128,6 +135,7 @@ Route::get('/rss.xml', [FeedController::class, 'rss'])->name('feed.rss');
 Route::get('/rss.php', [FeedController::class, 'rss']);
 Route::get('/sitemap.xml', [FeedController::class, 'sitemap'])->name('feed.sitemap');
 Route::get('/robots.txt', [FeedController::class, 'robots'])->name('robots');
+Route::get('/llms.txt', [LlmsController::class, 'index'])->name('feed.llms');
 
 /*
 |--------------------------------------------------------------------------