MoonSand/dsh-ui-optimize

Switches that tune how DeepSeek Harness looks and behaves across the whole interface, not just a few screens; each works on its own and more arrive as the shell grows. Theme gallery of eight minimalist themes, each defining one palette for light and one for dark and applied through a single theme-token layer, plus sidebar panel folding that collapses the rail rows into one Panels launcher with search and keyboard control, and reload/restart actions at the sidebar foot. Each feature is gated by runtime detection: what the current build cannot do is disabled with a stated reason, and an unknown probe stays enabled. The sidebar Reload/Restart buttons are ported from the separately listed MoonSand/dsh-desktop-restart; uninstall that plugin before installing this one — with both, the sidebar foot shows two sets of buttons.