xby-bilibili-api: Providing Bilibili API Access for DSH

`xby-bilibili-api` is an MCP server plugin for DeepSeek Harness (DSH), designed to provide agents with unified Bilibili data access capabilities. It encapsulates core functionalities such as searching videos and retrieving user and video details, and requires the API key to be configured via the `set_xby_apikey` tool. Developers can install the plugin by specifying the `web` configuration file, enabling direct calls to Bilibili public APIs within a session. It is suitable for scenarios such as automatically retrieving comments, analyzing metadata, or tracking feed updates.