DSH Plugin dsh-deeplink: Open a Specific Session or Project Directly from a URL

dsh-deeplink is a lightweight plugin for the DSH WebUI, designed to address the pain point of manually searching for conversation sessions. It allows users to directly open a specific conversation within a designated project or workspace via URL query parameters (`?session=<id>` or `?workspace=<id>`), with a session-first strategy. The plugin features "deep link redirection" and "address bar following," where the latter updates the address bar in real time with the current session ID without polluting browser history. Additionally, it registers model prompts on the backend, enabling the AI to automatically attach real, existing deep link IDs when referencing other sessions or projects. Installation is straightforward, deployable via the `dsh plugin` command without requiring a build step. This plugin is suitable for DSH users who need to share, bookmark session links, or wish to implement intelligent deep link references.