Fix workflow to support dev branch builds without pushing.

The metadata-action wasn't generating tags for dev branch, causing
builds to fail. Added tag pattern for dev branch and updated push
conditions to only push on main/tags, not dev.

Changes:
- Added type=ref tag for dev branch (generates 'dev' tag)
- Updated push condition to exclude dev branch
- Skip Docker Hub login/manifest/description steps for dev builds
- Dev builds now validate only, no Docker Hub push

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: PortableProgrammer

.github/workflows/docker-image.yml

@@ -35,7 +35,9 @@ jobs:
         with:
           images: portableprogrammer/status-light
           tags: |
-            # Tag PRs with 'edge'
+            # Dev branch gets 'dev' tag (for local builds, not pushed)
+            type=ref,event=branch,enable=${{ github.ref == 'refs/heads/dev' }}
+            # Main branch gets 'edge' tag
             type=edge,branch=main
             # Tag releases with semver
             type=semver,pattern={{version}}
@@ -54,7 +56,7 @@ jobs:
         uses: docker/setup-buildx-action@v3  # 2026-02-05: v3.7.1
 
       - name: Docker Hub login
-        if: github.event_name != 'pull_request'
+        if: github.event_name != 'pull_request' && github.ref != 'refs/heads/dev'
         uses: docker/login-action@v3  # 2026-02-05: v3.3.0
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
@@ -67,7 +69,7 @@ jobs:
           context: .
           file: ./Dockerfiles/Dockerfile
           platforms: linux/amd64,linux/arm/v7,linux/arm64
-          push: ${{ github.event_name != 'pull_request' }}
+          push: ${{ github.event_name != 'pull_request' && github.ref != 'refs/heads/dev' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           # GitHub Actions cache for faster builds
@@ -88,7 +90,7 @@ jobs:
         continue-on-error: true
 
       - name: Verify multi-arch manifest
-        if: github.event_name != 'pull_request'
+        if: github.event_name != 'pull_request' && github.ref != 'refs/heads/dev'
         run: |
           docker buildx imagetools inspect ${{ steps.meta.outputs.tags }} | tee manifest.txt
           echo "## Multi-Architecture Manifest" >> $GITHUB_STEP_SUMMARY