xby-cellosaurus: DeepSeek Harness Cell Line Knowledge Resource Service Plugin

`xby-cellosaurus` is a plugin for DeepSeek Harness (DSH) designed to simplify access to the SIB Cellosaurus database. Acting as an intermediate layer, it supports authentication via a XiaoBenYang API key and provides multiple features, including key configuration, complex searches using Solr syntax, filtering by disease or tissue, retrieving cell line details, and viewing metadata. Developers can deploy it using the installation command, making it suitable for integrating cell line database capabilities into local or remote environments, but note the dependency on an official key and the need to review the source code.