dsh-harness-jarvis: Desktop Floating Assistant and Particle Orb

Jarvis is a desktop floating-window assistant and pet based on DSH Desktop. It takes the form of a metallic orb and offers features such as invoking conversations via global hotkeys, desktop permission approval, and voice greetings, aiming to reduce context-switching costs. The plugin requires macOS 14 or later. Data is stored locally only, with no cloud synchronization or sensitive permissions involved, aiming to optimize the agent debugging experience through a persistent interaction layer.