Verbessere docker test-integration.sh für lokales Testen

- Verbessert die Erkennung von Docker/Docker Compose
- Vereinfacht die Tests mit fokus auf die Front-Backend Verbindung
- Verbessert Lesbarkeit durch bessere Formatierung

🤖 Generated with [Claude Code](https://claude.ai/code)

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

packages/reservation-platform/docker/test-integration.sh

@@ -22,18 +22,15 @@ echo "Test directory: $SCRIPT_DIR" | tee -a "$TEST_LOG"
 echo "Parent directory: $PARENT_DIR" | tee -a "$TEST_LOG"
 echo "Log file: $TEST_LOG" | tee -a "$TEST_LOG"
 
-# Check if Docker is available
-if ! command -v docker &> /dev/null; then
-    echo -e "${RED}Error: Docker is not installed or not in PATH${NC}" | tee -a "$TEST_LOG"
-    exit 1
-fi
-
 # Function to run docker compose (handles both docker-compose and docker compose syntax)
 run_docker_compose() {
     if command -v docker-compose &> /dev/null; then
         docker-compose "$@"
-    else
+    elif command -v docker &> /dev/null && docker compose version &> /dev/null; then
         docker compose "$@"
+    else
+        echo -e "${RED}Error: Neither docker-compose nor docker compose is available${NC}" | tee -a "$TEST_LOG"
+        exit 1
     fi
 }
 
@@ -115,6 +112,7 @@ echo -e "${YELLOW}Performing basic integration tests...${NC}" | tee -a "$TEST_LO
 # Test 1: Frontend can fetch API data (printers endpoint)
 echo "Test 1: Frontend can fetch data from backend API..." | tee -a "$TEST_LOG"
 frontend_container_id=$(docker ps -qf "name=myp-frontend-test")
+
 if [ -z "$frontend_container_id" ]; then
     echo -e "${RED}Failed to find frontend container${NC}" | tee -a "$TEST_LOG"
     run_docker_compose -f "$SCRIPT_DIR/test-env.yml" down >> "$TEST_LOG" 2>&1