ci: enable automated docker build and ghcr push

.github/workflows/ci.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [main, master]
 
+env:
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+
 jobs:
   test:
     name: Test
@@ -53,3 +56,55 @@ jobs:
           BUILD_DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)
           LDFLAGS="-s -w -X main.version=${VERSION} -X main.commit=${COMMIT} -X main.buildDate=${BUILD_DATE}"
           go build -ldflags "${LDFLAGS}" -tags "with_clash_api,with_quic" -o xboard-node-${{ matrix.goos }}-${{ matrix.goarch }} ./cmd/xboard-node
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: xboard-node-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: xboard-node-${{ matrix.goos }}-${{ matrix.goarch }}
+
+  build-docker:
+    name: Build & Push Docker Image
+    runs-on: ubuntu-latest
+    needs: test
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/cedar2025/xboard-node:latest
+            ghcr.io/cedar2025/xboard-node:${{ github.sha }}
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            xboard-node-linux-amd64/xboard-node-linux-amd64
+            xboard-node-linux-arm64/xboard-node-linux-arm64
+          draft: false
+          prerelease: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}