dsh-theme-dodger-17: DeepSeek Harness Dodger Blue Stadium Theme

The DeepSeek Harness plugin `dsh-theme-dodger-17` provides a customized Dodger Blue-based visual scheme for the DSH Web UI. User-maintained, it includes hand-tuned light/dark color schemes and supports one-click switching in DSH settings, automatically remembering the user's preference. Technically, it runs purely on the web client by overriding documented tokens and is compatible with both the DSH Web UI and Desktop versions. Users can install it by downloading the `.tgz` file and using the `dsh plugin add` command, then enabling it in settings.