dsh-client-ui-vibecontroller: DualSense Game Controller Overlay and Command Triggering

The DSH Harness plugin `dsh-client-ui-vibecontroller` enables deep interaction with the DSH Web interface by mapping DualSense controller buttons. As a floating overlay, it provides real-time button illumination feedback and command dispatch functionality. Core operations include moving the left stick to change position and view button bindings, as well as pressing the Options button to adjust display settings. Installation requires pnpm. This solution offers developers an intuitive new way to debug and operate, suitable for users accustomed to controller-based interaction.