Add GitHub Actions workflow for release and npm publish

Author: memo-db

.github/workflows/release.yml

@@ -0,0 +1,47 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  release:
+    # prevent this action from running on forks
+    if: github.repository == 'memo-db/live2d-renderer-lite'
+    permissions:
+      contents: write
+      pull-requests: read
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '22.x'
+          registry-url: 'https://registry.npmjs.org'
+      - name: Install dependencies
+        run: npm ci
+      - name: Extract version from package.json
+        uses: sergeysova/jq-action@v2
+        id: version
+        with:
+          cmd: 'jq .version package.json -r'
+      - name: Get latest tag
+        uses: actions-ecosystem/action-get-latest-tag@v1
+        id: get-latest-tag
+      - name: Publish GitHub Release
+        uses: release-drafter/release-drafter@v6
+        if: ${{ contains(steps.get-latest-tag.outputs.tag, steps.version.outputs.value) == false }}
+        with:
+          version: ${{ steps.version.outputs.value }}
+          publish: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Publish to NPM
+        if: ${{ contains(steps.get-latest-tag.outputs.tag, steps.version.outputs.value) == false }}
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}