dataelement/dsh-desktop ? reverse-engineered prompt

Build me a desktop app for DeepSeek Harness that feels polished and easy to use on macOS and Windows.

I want it to launch Harness automatically, keep my profiles, sessions, plugins, workspaces, and model settings outside the app so they survive updates, and open straight into the Harness interface once everything is ready. Please include support for official DeepSeek models and other common model providers, a simple way to pick project folders, and the ability to import and export reusable agent presets.

It should also have a PPT mode that can turn source material into an editable PowerPoint deck using built in templates, plus a way to continue a session from my phone over the local network or a temporary internet link. If a plugin breaks startup, I want a safe mode and recovery screen that helps me get back in.

Make it local first, secure, and well packaged for desktop installs, and look up current docs online if you need to.