chore: sync staging workspace

deployment/stacks/staging/docker-compose.yml

@@ -176,6 +176,12 @@ services:
           find /var/www/html.orig -mindepth 1 -maxdepth 1 ! -name "storage" -exec cp -r {} "$$GIT_TARGET_DIR/" \; 2>/dev/null || true
         fi
         
+        # Fix nginx upstream configuration - sites-enabled/default overrides conf.d/default.conf
+        if [ -f "/etc/nginx/sites-available/default" ]; then
+          echo "🔧 [staging-nginx] Fixing PHP-FPM upstream configuration..."
+          sed -i "s|server 127.0.0.1:9000;|server staging-app:9000;|g" /etc/nginx/sites-available/default || true
+        fi
+        
         # Start nginx only (no PHP-FPM, no Git clone - staging-app container handles that)
         echo "🚀 [staging-nginx] Starting nginx..."
         exec nginx -g "daemon off;"