feat: add GitHub Actions workflow for publishing to NPM (#49)

.github/workflows/npm-publish.yml

@@ -0,0 +1,61 @@
+name: Publish to NPM
+
+on:
+  push:
+    tags: ['v*.*.*']
+
+jobs:
+  publish-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+          run_install: false
+
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+      - name: Setup pnpm cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Update version from tag
+        run: |
+          # 提取标签版本号（移除 'v' 前缀）
+          VERSION=${GITHUB_REF#refs/tags/v}
+          echo "Updating package.json version to $VERSION"
+          # 使用 jq 更新 package.json 中的版本号
+          jq ".version = \"$VERSION\"" package.json > package.json.tmp
+          mv package.json.tmp package.json
+          # 显示更新后的版本号
+          echo "Updated version in package.json:"
+          grep -m 1 "version" package.json
+
+      - name: Build package
+        run: pnpm build
+
+      - name: Publish to NPM
+        run: pnpm publish --no-git-checks --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}