🔧 Fix All Docker Compose Commands

✅ Updated All Docker Compose References:
- package.json: docker:compose and docker:down scripts
- scripts/deploy.sh: All compose commands and checks
- scripts/monitor.sh: All compose commands
- DEPLOYMENT.md: Documentation examples
- .github/workflows/ci-cd.yml: CI/CD pipeline

�� Benefits:
- Compatible with newer Docker versions (docker compose)
- No more 'command not found' errors
- Consistent syntax across all files
- Successful deployment and monitoring

📝 Changed:
- 'docker-compose' → 'docker compose' (new syntax)
- Updated command availability checks
- Fixed all script references

DEPLOYMENT.md

@@ -201,7 +201,7 @@ curl http://localhost:3000/api/health
 curl -v http://localhost:3000/api/health
 
 # Container-Logs prüfen
-docker-compose -f docker-compose.prod.yml logs portfolio
+docker compose -f docker-compose.prod.yml logs portfolio
 ```
 
 ### **Performance-Probleme**
@@ -210,7 +210,7 @@ docker-compose -f docker-compose.prod.yml logs portfolio
 ./scripts/monitor.sh metrics
 
 # Nginx-Logs prüfen
-docker-compose -f docker-compose.prod.yml logs nginx
+docker compose -f docker-compose.prod.yml logs nginx
 ```
 
 ### **SSL-Probleme**
@@ -219,7 +219,7 @@ docker-compose -f docker-compose.prod.yml logs nginx
 openssl x509 -in ssl/cert.pem -text -noout
 
 # Nginx-Konfiguration testen
-docker-compose -f docker-compose.prod.yml exec nginx nginx -t
+docker compose -f docker-compose.prod.yml exec nginx nginx -t
 ```
 
 ## 📋 CI/CD Pipeline