chore: import upstream snapshot with attribution

copy.js

@@ -0,0 +1,16 @@
+const fs = require('fs')
+const path = require('path')
+
+const src = path.resolve(__dirname, './dist/index.html') 
+const dest = path.resolve(__dirname, './index.html') 
+
+if (fs.existsSync(dest)) {
+    fs.unlinkSync(dest)
+}
+
+if (fs.existsSync(src)) {
+    fs.copyFileSync(src, dest)
+    fs.unlinkSync(src)
+}
+
+// console.warn('请检查付费插件是否启用！！！')