dsh-blue-archive-shiroko: Blue Archive Theme and Shiroko Desktop Pet for DSH Web Client

`dsh-blue-archive-shiroko` is an unofficial fan-made theme plugin for the DSH Web Client developed by mldhao (v0.6.0, MIT License), providing a Blue Archive style visual and interactive experience for DeepSeek Harness. Core features include: a complete UI theme centered around academy blue, cyan highlights, and white frosted glass panels; a Shiroko desk pet that supports dragging, resizing, and autonomous interaction; petting interaction and sound effects triggered by holding the head for approximately 420ms; and Codex-style short bubbles with streaming character-by-character text display. In terms of utility, a short press on the desk pet allows querying the API balance via a Host-side RPC call to the DeepSeek official interface. The API key does not enter the browser, and the RPC is restricted to loopback address calls, ensuring security. Installation requires the DSH plugin system.