diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eae7257..0945ba1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,5 +31,24 @@ jobs:
     - name: Install Composer dependencies
       run: composer install -q --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist --working-dir=php
 
+    - name: Debugging - Show current directory and composer.json
+      run: |
+        pwd
+        echo "--- php/composer.json ---"
+        cat php/composer.json
+      working-directory: php
+
+    - name: Debugging - Show autoload_psr4.php
+      run: |
+        echo "--- php/vendor/composer/autoload_psr4.php ---"
+        cat php/vendor/composer/autoload_psr4.php
+      # Cette étape doit s'exécuter après composer install, donc vendor existe.
+      # Le working-directory n'est pas nécessaire ici si on spécifie le chemin complet.
+
+    - name: Debugging - List app/src/Utils
+      run: |
+        echo "--- Listing app/src/Utils ---"
+        ls -la app/src/Utils
+
     - name: Run PHPUnit tests
       run: php/vendor/bin/phpunit --configuration php/phpunit.xml.dist