fix(ci): add container state diagnostics before composer install

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

.gitea/workflows/qa-required.yaml

@@ -24,9 +24,15 @@ jobs:
         run: |
           docker compose up -d php db memcached
           sleep 10
+          echo "=== php container state ==="
+          docker compose ps php
+          echo "=== php container logs ==="
+          docker compose logs php
+          echo "=== check /var/www mount ==="
+          docker compose exec -T php ls -la /var/www/ || true
 
       - name: Install Composer dependencies
-        run: docker compose exec -T php bash -c "ls /var/www/ && composer install --no-interaction --prefer-dist"
+        run: docker compose exec -T php bash -c "composer install --no-interaction --prefer-dist"
 
       - name: Run required QA gates
         run: bin/qa-required.sh