fix: document manual deployment requirement

After extensive testing, Docker Compose cannot create containers with
external networks from within the workflow container due to Docker-in-Docker
limitations. The workflow now builds the image successfully and provides
clear instructions for manual deployment.

CI builds the image ✅
Manual deployment required for network-connected containers

.gitea/workflows/deploy-dev.yml

@@ -63,6 +63,8 @@ jobs:
         run: cp dashboard/docker-compose.dev.yml /nas-dashboard/docker-compose.dev.yml
       - name: Deploy dev
         run: |
-          export DOCKER_API_VERSION=1.43
-          # Execute deploy script from mounted volume
-          bash /nas-dashboard/deploy-dev.sh
+          echo "✅ Image built successfully: nas-dashboard-dev:latest"
+          echo ""
+          echo "⚠️  Automatic deployment is not possible due to Docker-in-Docker network limitations."
+          echo "To deploy manually, run on the NAS:"
+          echo "  ssh nas 'cd /volume1/docker/nas-dashboard && docker rm -f nas-dashboard-dev && docker compose -f docker-compose.dev.yml up -d --pull never'"