dsh-add-assets: A File and Attachment Enhancement Plugin for DeepSeek Harness

dsh-add-assets is an extension plugin for DeepSeek Harness designed to enhance the interactivity of the composer’s `+` button. It replaces the button with a menu that supports adding files, adding folders, uploading images, and triggering slash commands. The plugin integrates file pickers for both the Project and This machine scopes; selected paths are converted into inline reference chips or plain text, and it provides full-screen image previews and file card displays. The plugin depends on the DeepSeek Harness Web client and specific services, supports keyboard shortcuts and path search, and can effectively optimize file management workflows within conversations.