feat: use xpier media library for uploads and markdown embeds

Store media:ID in post bodies instead of CDN URLs, and keep sablog attach tokens as a fallback.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/Feature/AdminPagesTest.php

@@ -50,6 +50,15 @@ class AdminPagesTest extends TestCase
         $this->actingAs($this->admin)->get('/admin/media')->assertOk();
     }
 
+    public function test_media_library_resource_loads(): void
+    {
+        $this->actingAs($this->admin)->get('/admin/media-library')->assertOk();
+        $this->actingAs($this->admin)->get('/admin/media-folders')->assertOk();
+        $this->actingAs($this->admin)->get('/admin/posts/create')
+            ->assertOk()
+            ->assertSee('media:ID', false);
+    }
+
     public function test_plugin_and_payment_pages_load(): void
     {
         $this->actingAs($this->admin)->get('/admin/plugins')->assertOk();

tests/Feature/MarkdownMediaLibraryTest.php

@@ -0,0 +1,113 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature;
+
+use App\Blog\Services\PostContentRenderer;
+use App\Models\Post;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+use Xpier\FilamentMediaLibrary\Models\MediaLibrary;
+
+class MarkdownMediaLibraryTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_markdown_body_renders_media_protocol_to_image_without_storing_url(): void
+    {
+        $media = $this->createLibraryImage(12, 'Hero shot');
+        $post = Post::query()->create([
+            'user_id' => User::factory()->create()->id,
+            'title' => 'Media embed post',
+            'slug' => 'media-embed-post',
+            'content' => "Intro\n\n![Hero shot](media:{$media->id})\n",
+            'content_format' => 'markdown',
+            'status' => 'published',
+            'published_at' => now()->subMinute(),
+        ]);
+
+        $html = app(PostContentRenderer::class)->render($post);
+
+        $this->assertStringContainsString((string) $media->url, $html);
+        $this->assertStringContainsString('<img', $html);
+        $this->assertStringNotContainsString('media:'.$media->id, $html);
+        $this->assertStringContainsString("![Hero shot](media:{$media->id})", (string) $post->fresh()->content);
+    }
+
+    public function test_html_body_hydrates_media_shortcode(): void
+    {
+        $media = $this->createLibraryImage(21, 'Inline');
+        $post = Post::query()->create([
+            'title' => 'HTML media post',
+            'content' => '<p>see [media='.$media->id.']</p>',
+            'content_format' => 'html',
+            'status' => 'published',
+            'published_at' => now()->subMinute(),
+        ]);
+
+        $html = app(PostContentRenderer::class)->render($post);
+
+        $this->assertStringContainsString((string) $media->url, $html);
+        $this->assertStringNotContainsString('[media='.$media->id.']', $html);
+    }
+
+    public function test_published_post_page_shows_library_image(): void
+    {
+        $media = $this->createLibraryImage(33, 'Cover art');
+        $post = Post::query()->create([
+            'title' => 'Visible media post',
+            'slug' => 'visible-media-post',
+            'content' => "![Cover art](media:{$media->id})",
+            'content_format' => 'markdown',
+            'status' => 'published',
+            'published_at' => now()->subMinute(),
+            'cover_media_id' => $media->id,
+        ]);
+
+        $this->get('/posts/'.$post->slug.'.shtml')
+            ->assertOk()
+            ->assertSee((string) $media->url, false)
+            ->assertDontSee('media:'.$media->id, false);
+
+        $this->assertSame((string) $media->url, $post->fresh()->coverImageUrl());
+    }
+
+    public function test_missing_media_reference_does_not_crash_render(): void
+    {
+        $post = Post::query()->create([
+            'title' => 'Broken media post',
+            'content' => '![gone](media:99999)',
+            'content_format' => 'markdown',
+            'status' => 'published',
+            'published_at' => now()->subMinute(),
+        ]);
+
+        $html = app(PostContentRenderer::class)->render($post);
+
+        $this->assertIsString($html);
+        $this->assertStringContainsString('media:99999', $html);
+    }
+
+    private function createLibraryImage(int $id, string $alt): MediaLibrary
+    {
+        $media = new MediaLibrary;
+        $media->forceFill([
+            'id' => $id,
+            'disk' => 'public',
+            'path' => 'media/library/articles/image/test-'.$id.'.jpg',
+            'original_name' => 'test-'.$id.'.jpg',
+            'extension' => 'jpg',
+            'mime_type' => 'image/jpeg',
+            'size' => 128,
+            'type' => MediaLibrary::TYPE_IMAGE,
+            'source' => MediaLibrary::SOURCE_ADMIN,
+            'folder' => 'articles',
+            'alt_text' => $alt,
+        ]);
+        $media->save();
+
+        return $media->fresh();
+    }
+}