DeepSeek Harness Plugin: DSH Hacker Terminal Theme

The DeepSeek Harness (DSH) Terminal Hacker Theme plugin provides a visual reskin for the Web UI, featuring a green background, Matrix-style droplets, and glassy textures. It supports automatic installation and activation, and includes a HUD status bar, specific font configuration, and accessibility and privacy protections. As a standalone bundle, it has no runtime dependencies, strictly cleans up injected content upon uninstallation, and does not send any data. It is currently available for the DSH developer preview.