Remove manual Traefik labels - let Coolify handle routing

Coolify v4 beta has a bug generating broken Host() rules when
manual labels conflict. Removing custom labels to use Coolify's
native domain configuration.

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yaml

@@ -3,17 +3,6 @@ services:
     build: .
     container_name: wp-islandpferde
     restart: unless-stopped
-    labels:
-      - "traefik.enable=true"
-      - "traefik.http.routers.wp-island-http.rule=Host(`kurse.islandpferde-melanieworbs.de`)"
-      - "traefik.http.routers.wp-island-http.entrypoints=http"
-      - "traefik.http.routers.wp-island-http.service=wp-island"
-      - "traefik.http.routers.wp-island-https.rule=Host(`kurse.islandpferde-melanieworbs.de`)"
-      - "traefik.http.routers.wp-island-https.entrypoints=https"
-      - "traefik.http.routers.wp-island-https.tls=true"
-      - "traefik.http.routers.wp-island-https.tls.certresolver=letsencrypt"
-      - "traefik.http.routers.wp-island-https.service=wp-island"
-      - "traefik.http.services.wp-island.loadbalancer.server.port=8080"
     environment:
       NGINX_WEBROOT: /var/www/html/web
       PHP_INI_VARIABLES_ORDER: EGPCS