秘塔AI搜索 providers for ctx.web：web_search 返回网页摘要，web_fetch 读取网页全文 markdown，多范围搜索（网页/文库/论文/图片/视频/播客）。
curl -fsSL https://www.dshhub.co/install.sh -o dshhub-install.sh && bash dshhub-install.shAlready have DSH? Skip the wizard and install the market directly:dsh plugin --profile web add dshhub-market
This plugin installs only from the plugin side.