chore: 更新发布工作流，添加版本检查和发布前的存在性验证

Author: cklwblove

.github/workflows/release.yml

@@ -77,14 +77,19 @@ jobs:
       - name: 更新版本号 (手动触发时)
         if: github.event_name == 'workflow_dispatch'
         run: |
-          npm version ${{ steps.get_version.outputs.version }} --no-git-tag-version
-          git config --local user.email "[email protected]"
-          git config --local user.name "GitHub Action"
-          git add package.json
-          git commit -m "chore: bump version to ${{ steps.get_version.outputs.version }}"
-          git tag ${{ steps.get_version.outputs.tag_name }}
-          git push origin HEAD:${{ github.ref_name }}
-          git push origin ${{ steps.get_version.outputs.tag_name }}
+          # 检查 tag 是否已经存在
+          if git show-ref --tags --verify --quiet "refs/tags/${{ steps.get_version.outputs.tag_name }}"; then
+            echo "⚠️ Tag ${{ steps.get_version.outputs.tag_name }} 已存在，跳过创建"
+          else
+            npm version ${{ steps.get_version.outputs.version }} --no-git-tag-version
+            git config --local user.email "[email protected]"
+            git config --local user.name "GitHub Action"
+            git add package.json
+            git commit -m "chore: bump version to ${{ steps.get_version.outputs.version }}"
+            git tag ${{ steps.get_version.outputs.tag_name }}
+            git push origin HEAD:${{ github.ref_name }}
+            git push origin ${{ steps.get_version.outputs.tag_name }}
+          fi
 
       - name: 生成变更日志
         id: changelog
@@ -94,14 +99,28 @@ jobs:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
 
       - name: 发布到 npm
-        run: pnpm publish --no-git-checks
+        run: |
+          # 检查版本是否已经发布到 npm
+          PACKAGE_NAME=$(node -p "require('./package.json').name")
+          CURRENT_VERSION=$(node -p "require('./package.json').version")
+          
+          # 尝试获取 npm 上的版本信息
+          if npm view "${PACKAGE_NAME}@${CURRENT_VERSION}" version 2>/dev/null; then
+            echo "⚠️ 版本 ${CURRENT_VERSION} 已存在于 npm，跳过发布"
+          else
+            echo "📦 发布版本 ${CURRENT_VERSION} 到 npm..."
+            pnpm publish --no-git-checks
+          fi
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 
       - name: Create GitHub Release
         uses: ncipollo/release-action@v1
         with:
           generateReleaseNotes: "true"
+          allowUpdates: true
+          skipIfReleaseExists: false
+          omitBodyDuringUpdate: false
 
       - name: 通知发布成功
         run: |