rofavama/deepseek-desktop ? reverse-engineered prompt

Build me a simple desktop app for DeepSeek that opens the DeepSeek chat experience in its own window instead of a browser.

I want it to feel like a clean native app, with the official DeepSeek logo, basic app controls, and support for saved login state using local storage and cookies so users do not have to keep signing in every time. Make it work on Windows first, and keep the structure simple so it can later be expanded for macOS and Linux. If you need to check the latest docs for anything, feel free to look them up online.

Please make it easy to run in development and easy to package into an installer for release. The end result should be a polished desktop wrapper that launches quickly, keeps the session persistent, and is straightforward for someone to build from source and use right away.