Fix CI/CD deploy: use workspace compose file instead of /opt/umbra

The job container doesn't have /opt/umbra. Use the checked-out
repo's docker-compose.yaml (already in the working directory).
Combined pull + deploy into one step. Increased health check wait.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -34,20 +34,15 @@ jobs:
           docker push ${{ vars.REGISTRY_HOST }}/rohskiddo/umbra-frontend:main-latest
           docker push ${{ vars.REGISTRY_HOST }}/rohskiddo/umbra-frontend:${{ github.sha }}
 
-      - name: Pull new images
-        run: |
-          cd /opt/umbra
-          docker compose pull backend frontend
-
       - name: Deploy
         run: |
-          cd /opt/umbra
-          docker compose up -d
+          docker compose pull backend frontend
+          docker compose up -d --remove-orphans
 
       - name: Health check
         run: |
           echo "Waiting for services to start..."
-          sleep 10
+          sleep 15
           curl -f http://localhost/health || exit 1
 
       - name: Prune old images