refactor(reader): serve pages as static files instead of base64

Replace the per-page API call (base64 payload) with static image URLs
served directly by Caddy from public/images/pages/{chapterId}/.

- LocalImageStorage now stores to public/images/ (was MANGA_DATA_PATH)
- LegacyChapterRepository returns /images/pages/{id}/{file} URLs,
  uses getimagesize() instead of loading file content into memory
- Delete GetChapterPage query/handler/response, ChapterPageResource,
  ChapterPageProvider, PageContent model
- Remove getPageContent() from ChapterRepositoryInterface
- Frontend: loadChapter() fetches chapter + all pages in parallel,
  ReaderPage uses URL instead of base64 data URI, InfiniteReader drops
  lazy-load observer side effect, readerStore drops loadedPages/preload
- GetChapterPagesTest: extract fixture images from CBZ at runtime,
  ignore tests/Fixtures/pages/ in .gitignore

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/Feature/Reader/GetChapterPagesTest.php

@@ -9,18 +9,27 @@ use App\Factory\MangaFactory;
 use App\Tests\Feature\AbstractApiTestCase;
 use Symfony\Component\HttpFoundation\Response;
 use Zenstruck\Foundry\Test\ResetDatabase;
+use ZipArchive;
 
 final class GetChapterPagesTest extends AbstractApiTestCase
 {
     use ResetDatabase;
 
     private int $chapterId;
+    private string $pagesDirectory;
 
     protected function setUp(): void
     {
         parent::setUp();
 
-        // Création d'un manga et d'un chapitre avec les factories
+        // Extraire quelques images du CBZ dans un dossier temporaire
+        $this->pagesDirectory = sys_get_temp_dir() . '/mangarr-test-pages-' . uniqid();
+        mkdir($this->pagesDirectory);
+        $zip = new ZipArchive();
+        $zip->open(__DIR__ . '/../../Fixtures/chapter.cbz');
+        $zip->extractTo($this->pagesDirectory, ['007.jpg', '008.jpg']);
+        $zip->close();
+
         $manga = MangaFactory::createOne([
             'title' => 'Test Manga',
             'slug' => 'test-manga'
@@ -32,12 +41,22 @@ final class GetChapterPagesTest extends AbstractApiTestCase
             'number' => 1.0,
             'volume' => 1,
             'visible' => true,
-            'cbzPath' => __DIR__ . '/../../Fixtures/chapter.cbz'
+            'pagesDirectory' => $this->pagesDirectory
         ]);
 
         $this->chapterId = $chapter->getId();
     }
 
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+
+        foreach (glob($this->pagesDirectory . '/*') as $file) {
+            unlink($file);
+        }
+        rmdir($this->pagesDirectory);
+    }
+
     public function testItReturnsNotFoundWhenChapterDoesNotExist(): void
     {
         $response = static::createClient()->request('GET', '/api/reader/chapter/999/pages');