chore: 添加 npm run clean 脚本清理构建产物

Author: WangSimiao2000

README.md

@@ -73,6 +73,7 @@ bundle exec jekyll s -l    # 启动 Jekyll (livereload)
 | `npm run watch` | JS 监听模式 |
 | `npm run dev` | 构建 + 启动开发服务器 |
 | `npm test` | 构建站点 + HTML 校验 |
+| `npm run clean` | 清理所有构建产物，恢复干净状态 |
 
 ### 写文章
 

package.json

@@ -10,7 +10,8 @@
     "build": "BUILD=production npx rollup -c --bundleConfigAsCjs",
     "watch": "npx rollup -c --bundleConfigAsCjs -w",
     "dev": "npm run build && bash _scripts/run.sh",
-    "test": "bash _scripts/test.sh"
+    "test": "bash _scripts/test.sh",
+    "clean": "rm -rf assets/js/dist _site .jekyll-cache .jekyll-metadata node_modules && echo '✅ 已清理所有构建产物'"
   },
   "devDependencies": {
     "@babel/core": "^7.24.0",