cordis-transfer-plugin: Persistent DSH plugin for importing and exporting dynamic Cordis Plugins

`zby1211/cordis-transfer-plugin` is an MIT-licensed plugin for DSH designed to address the inconvenience of migrating dynamic Cordis plugins across sessions. As a static configuration package, it offers two interaction methods—the browser Settings panel and Model Tools—supporting the listing of dynamic plugins in the current session, their export to `.dsh-cordis-bundle.zip` files, and import from local ZIP files. Installation requires executing `dsh plugin --profile web add cordis-transfer-plugin` and restarting the service, with dependencies on specific versioned libraries such as `@deepseek-ai/dsh-tools`.