Use dsh-session-deeplink to add shareable URLs to DSH sessions

### 翻译结果（兼顾技术文档的严谨性和自然表达）： `dsh-session-deeplink` is a DeepSeek Harness Web client plugin maintained by R3alloc, which generates a shareable URL containing the local session via the `?session=` parameter. This article verifies the following details through the catalog page, GitHub and npm repositories: it is licensed under MIT, with version 0.1.1, and based on dsh 0.1.0-rc.6. It is recommended to install it into the web profile; after restarting dsh web, the session ID will be synchronized to the address bar. It is not a cloud sharing tool, and the target session must already exist in the current session list.