DeepSeek Harness (DSH) Brazilian Portuguese Locale Plugin

`negriniainda/dsh-locale-ptbr` is a Brazilian Portuguese localization plugin for DeepSeek Harness (DSH). The plugin supports pt-BR through a bridging mechanism, automatically detects the browser language, and globally overrides translations in the Web UI. After installation, the interface automatically switches to Portuguese when neither Chinese nor English is explicitly selected; however, a manually selected language applies only to the current session and cannot be persisted.