dsh-bird-bike: Pixel Chick Cycling Band at the Bottom of the DSH Web GUI

`dsh-bird-bike` is a plugin for DeepSeek Harness Web GUI that adds fun pixel-art animations by transforming the bottom bar into a dynamic scene. It features a physics-simulated pixel chicken rider, a day/night cycle, and monster interactions (Creeper and Zombies). Users can click to trigger actions such as bell-ringing for speed boosts and jumping, and view cycling data. It is implemented with zero dependencies in pure JS, rendering pixel art using an offscreen Canvas, and supports collapsing and accessibility settings.