DSH Desktop v0.1.0

Self-contained installers: the Node runtime, the package manager and
DeepSeek Harness itself are bundled, so nothing is downloaded on
first launch and no Node.js has to be installed.

Windows — -setup.exe. No .msi is published: it did not
work, and it took over a minute to install where this takes ten
seconds, because MSI registers every bundled file as its own
component.

Linux — .AppImage runs on any distribution without
installing; .deb and .rpm also add a menu entry. The tray icon
needs a status-notifier host, which GNOME provides through the
AppIndicator extension.

macOS is not built yet.