Add: Auto-Deploy nach erfolgreichem CI Build

- Deploy-Stage in CI: SSH auf adriahub nach Build
- deploy.sh auf adriahub: pull + recreate Container
- Nur auf main Branch, nach erfolgreichem Build

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

.gitlab-ci.yml

@@ -1,5 +1,6 @@
 stages:
   - build
+  - deploy
 
 variables:
   INTERNAL_REGISTRY: "192.168.1.100:9080"
@@ -61,3 +62,17 @@ docker-build:
         --cache-repo="$IMAGE_NAME/cache" \
         --insecure-registry=$INTERNAL_REGISTRY \
         $DESTINATIONS
+
+deploy:
+  stage: deploy
+  image: alpine:latest
+  needs: [docker-build]
+  rules:
+    - if: $CI_COMMIT_BRANCH == "main"
+  before_script:
+    - apk add --no-cache openssh-client
+    - mkdir -p ~/.ssh
+    - echo "$DEPLOY_SSH_KEY" | base64 -d > /tmp/deploy_key
+    - chmod 600 /tmp/deploy_key
+  script:
+    - ssh -i /tmp/deploy_key -o StrictHostKeyChecking=no root@100.79.45.50 "/mnt/cache/appdata/gaming-hub/deploy.sh"