dsh-zh-labels: DeepSeek Harness Interface Chinese Label Persistence Plugin

dsh-zh-labels is a DeepSeek Harness (DSH) plugin designed to address the issue of hardcoded English UI labels being overwritten after upgrades. It enables a persistent Chinese interface by automatically scanning and replacing 316 known labels in files such as `client.js`, including tools, thinking, sidebar, and more. The plugin features multi-deployment detection, fault tolerance, and idempotent safety, and it takes effect after installation and a restart. If labels stop working after an upgrade, the rule table must be updated.