插件使用报错(undefined is not an object)

## 使用环境

- 系统版本：13.2.1
- Sketch 版本：版本95.2 (160763)
- Kitchen 版本：3.2.2

## 问题

Start by reproducing the plugin error in the reported macOS 13.2.1, Sketch 95.2, and Kitchen 3.2.2 environment, using the screenshot as the observed symptom. The issue names no source files or tests, so first locate the plugin entry point and the operation that triggers the error. Done means identifying the failing path and confirming the plugin no longer reports “undefined is not an object” in the reported setup.

Written by the indexing model from the issue text.