add build workflow

.gitea/workflows/build.yml

@@ -0,0 +1,35 @@
+name: nodeJS remote worker
+
+on:
+  push:
+    branches: ["main","dev"]
+  pull_request:
+    branches: ["main", "dev"]
+
+jobs: 
+
+  build: 
+    
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Set up Docker BuildX
+        uses: docker/setup-buildx-action@v3
+
+      - name: login to gitea registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ gitea.server_url }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.GITEA_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with: 
+          context: .
+          push: true
+          tags: |
+            ${{ gitea.server_url }}/${{ gitea.repository }}:latest