dsh-eva-skin: EVA Cel-Shaded Skin for DSH Web UI

dsh-eva-skin is a pure client-side skin plugin for DeepSeek Harness Web UI maintained by luwendi-qq. It is packaged as @winstonlu/dsh-eva-skin, version 1.0.56, and is licensed under the MIT license. The plugin does not render components, register services, or interfere with official class names. Instead, it injects a single style sheet into the `<head>` to implement the EVA cel-shaded style by overriding official `--dsw-*` design tokens: ink line strokes, hard non-blurred shadows, full-screen CRT scanlines, a 3px session status track on the left sidebar, and fluorescent tick marks on the right navigation bar. Configuration is limited to four switches—`scanlines`, `hardShadow`, `forceDark`, and `backdrop`—which must be defined in the `cordis.patch.yml` file within the `profile`. It supports embedding a custom WebP background via `tools/set-background.sh` or reverting to a pure gradient background via `strip-background.sh`. Requires DSH >= 0.2.0-rc.2 and is for the Web client only.