dsh-matrix-skin: Black-first Matrix Hacker Skin for DeepSeek Harness (DSH) Web

`dsh-matrix-skin` is an independent community plugin licensed under the MIT License, designed to provide DeepSeek Harness Web (DSH) with an immersive, hacker-aesthetic interface. This skin adopts a black-first design, featuring dynamic Matrix rain, terminal-style treatment for Think lines, and full sidebar shell coverage. Core features include a motion-reduction setting, local privacy handling (no network requests or telemetry), and access to reasoning text. Users must ensure they are using DSH `web` profile version 0.1.5-rc.1 or a compatible version. After installing it via the `dsh plugin` command and refreshing, the skin is enabled, delivering dynamic visual effects generated in real time based on the current text.