dsh-session-pilot: Managing DeepSeek Harness Sessions Within Conversations

`dsh-session-pilot` is a plugin for DeepSeek Harness (DSH) that allows models and users to manage sessions directly within the current conversation window without switching context. It provides five model tools (create, rename, list, read, and archive) and two UI entry points (“New” in the title bar and “New” beside a message). Users can interact via natural language or button clicks to manage the full session lifecycle. The plugin does not conflict with pure UI session-management plugins and aims to fill a gap in the community by enabling models to directly manage top-level sessions.