Enable Discovery debug logging for production troubleshooting

- Add DISCOVERY_LOG_LEVEL=debug
- Add DISCOVERY_SHOW_PROGRESS=true
- Temporary changes for debugging InitializerProcessor fixes on production

src/Domain/Media/ImageSourceSetGenerator.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace App\Domain\Media;
@@ -36,7 +37,7 @@ final readonly class ImageSourceSetGenerator
         $attributes['width'] = $fallbackImage->width;
         $attributes['height'] = $fallbackImage->height;
 
-        if (!isset($attributes['alt'])) {
+        if (! isset($attributes['alt'])) {
             $attributes['alt'] = '';
         }
 
@@ -114,6 +115,11 @@ final readonly class ImageSourceSetGenerator
     {
         $variantsByFormat = [];
 
+        // Check if variants are loaded to avoid uninitialized readonly property error
+        if (! isset($image->variants)) {
+            return [];
+        }
+
         foreach ($image->variants as $variant) {
             if ($variant->variantType === $variantType) {
                 $variantsByFormat[$variant->format][] = $variant;
@@ -133,15 +139,16 @@ final readonly class ImageSourceSetGenerator
     private function getFallbackImage(array $variantsByFormat, Image $image): ImageVariant
     {
         // Bevorzugen JPEG als Fallback
-        if (isset($variantsByFormat['jpeg']) && !empty($variantsByFormat['jpeg'])) {
+        if (! empty($variantsByFormat['jpeg'])) {
             // Mittlere Größe als Fallback verwenden
             $variants = $variantsByFormat['jpeg'];
+
             return $variants[min(1, count($variants) - 1)];
         }
 
         // Alternativen, falls kein JPEG verfügbar
         foreach (['webp', 'avif'] as $format) {
-            if (isset($variantsByFormat[$format]) && !empty($variantsByFormat[$format])) {
+            if (! empty($variantsByFormat[$format])) {
                 return $variantsByFormat[$format][0];
             }
         }