agency-agents-zh-dsh-plugin: Register 268 Chinese AI Expert Personas as DSH Skills

This plugin encapsulates 268 upstream Chinese expert roles into a DeepSeek Harness (DSH) bundle plugin, supporting manual triggering or automatic matching. Users can install it via official commands and configure department allowlists, blocklists, or quantity limits. After installation, DSH must be restarted, and all content copyright belongs to the upstream source.