Migrate from Kirby CMS to Hugo with Gokarna theme

- Remove all Kirby/PHP files
- Add Hugo config with Gokarna theme as git submodule
- Add nginx + Hugo Dockerfile replacing PHP/Apache
- Update deploy.php to run hugo after git pull
- Update .gitignore for Hugo output

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

docker-compose.yml

@@ -0,0 +1,35 @@
+version: '3.8'
+
+services:
+  kirbycms:
+    build:
+      context: ./kirby
+      dockerfile: Dockerfile
+    image: robbis-space
+    container_name: robbis-space
+    volumes:
+      - /home/kirbyuser/robbis-space:/var/www/html:rw # Persistente Daten
+    environment:
+      - DEPLOY_SECRET=${DEPLOY_SECRET}
+    restart: unless-stopped
+    networks:
+      - proxy
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=proxy"
+      - "traefik.http.routers.robbis-space.service=robbis-space"
+      - "traefik.http.routers.robbis-space.tls.certresolver=http_resolver"
+      - "traefik.http.routers.robbis-space.tls.domains[0].main=robbis.space"
+      - "traefik.http.routers.robbis-space.rule=Host(`robbis.space`)"
+      - "traefik.http.routers.robbis-space.entrypoints=websecure"
+      - "traefik.http.routers.robbis-space.tls=true"
+      - "traefik.http.services.robbis-space.loadbalancer.server.port=80"
+          # HTTP-Router (Port 80)
+      - "traefik.http.routers.robbis-space-http.rule=Host(`robbis.space`)"
+      - "traefik.http.routers.robbis-space-http.entrypoints=web"
+      - "traefik.http.routers.robbis-space-http.middlewares=traefik-https-redirect"
+      - "traefik.http.middlewares.traefik-https-redirect.redirectscheme.scheme=https"
+          # Service-Port (Apache läuft auf Port 80 im Container)
+networks:
+  proxy:
+    external: true