👷 Add NPM package build and publish CI job

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: Build and publish package
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - '*'
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Create production build
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: '.nvmrc'
+          cache: npm
+          registry-url: https://registry.npmjs.org/
+          scope: '@maykinmedia'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build library
+        run: |
+          npm run build
+
+      - name: Publish to NPM
+        # do not publish in forks or non-tag pushes
+        if: startsWith(github.ref, 'refs/tags/') && github.repository_owner == 'maykinmedia'
+        run: |
+          # Strip git ref prefix from version
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          npm publish --access public --new-version="$VERSION"
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}