Implement creator studio and upload updates

app/Http/Controllers/Api/ArtworkDownloadController.php

@@ -105,6 +105,13 @@ final class ArtworkDownloadController extends Controller
      */
     private function resolveDownloadUrl(Artwork $artwork): string
     {
+        $filePath = trim((string) ($artwork->file_path ?? ''), '/');
+        $cdn = rtrim((string) config('cdn.files_url', 'https://files.skinbase.org'), '/');
+
+        if ($filePath !== '') {
+            return $cdn . '/' . $filePath;
+        }
+
         $hash = $artwork->hash ?? null;
         $ext  = ltrim((string) ($artwork->file_ext ?: $artwork->thumb_ext ?: 'webp'), '.');
 
@@ -112,9 +119,9 @@ final class ArtworkDownloadController extends Controller
             $h   = strtolower(preg_replace('/[^a-f0-9]/', '', $hash));
             $h1  = substr($h, 0, 2);
             $h2  = substr($h, 2, 2);
-            $cdn = rtrim((string) config('cdn.files_url', 'https://files.skinbase.org'), '/');
+            $prefix = trim((string) config('uploads.object_storage.prefix', 'artworks'), '/');
 
-            return sprintf('%s/original/%s/%s/%s.%s', $cdn, $h1, $h2, $h, $ext);
+            return sprintf('%s/%s/original/%s/%s/%s.%s', $cdn, $prefix, $h1, $h2, $h, $ext);
         }
 
         // Fallback: best available thumbnail size