Fix: horstoeko/zugferd in composer.json + composer.lock versionieren, Dockerfile-Composer-Fehler nicht mehr verschlucken

Dockerfile

@@ -23,7 +23,7 @@ WORKDIR /var/www/html
 
 # Copy composer files first for layer caching
 COPY composer.json composer.lock* ./
-RUN composer install --no-dev --no-interaction --optimize-autoloader 2>/dev/null || true
+RUN composer install --no-dev --no-interaction --optimize-autoloader
 
 # Copy application
 COPY . .

composer.json

@@ -4,7 +4,8 @@
     "type": "project",
     "require": {
         "php": ">=8.3",
-        "mpdf/mpdf": "^8.2"
+        "mpdf/mpdf": "^8.2",
+        "horstoeko/zugferd": "^1.0"
     },
     "autoload": {
         "psr-4": {