在一个没有用 { writable: true } 打开的 ZipFile 上调用了一个会改变内容的方法（例如 zipFile.addEntry() 或 zipFile.delete()）。
{ writable: true }
ZipFile
zipFile.addEntry()
zipFile.delete()
🌐 A mutating method (such as zipFile.addEntry() or zipFile.delete()) was called on a ZipFile that was not opened with { writable: true }.