fix: copy full homelab compose file, not runner-only subset

CRITICAL FIX: The homelab server runs the full stack (runner + GlitchTip +
observability tools), not just the runner. Copying homelab/runner/docker-compose.yml
would have destroyed all other services.

Changed: homelab/runner/docker-compose.yml → homelab/docker-compose.yml

.gitea/workflows/release.yaml

@@ -157,7 +157,7 @@ jobs:
       - name: Copy docker-compose.yml to homelab
         run: |
           scp -i ~/.ssh/homelab_key \
-            homelab/runner/docker-compose.yml \
+            homelab/docker-compose.yml \
             "${{ secrets.HOMELAB_USER }}@${{ secrets.HOMELAB_HOST }}:/opt/libnovel-runner/docker-compose.yml"
 
       - name: Pull new runner image and restart