Upload, list, download, share and delete files in an AgentUI workspace's file storage with `agentui files`. Use when the user wants to put a file into AgentUI — an image, PDF, CSV, logo or dataset the app or a colleague needs to reach; wants a public or temporary link to a file already in the workspace; or asks where their AgentUI app should store uploads and attachments. Not for ordinary local file work, and not for uploads to any other service.
