dsh-cafe-order: Cafe Ordering

DeepSeek Harness (DSH) uses a plugin mechanism to extend the capabilities of agents. `dsh-cafe-order` is a standardized tool plugin maintained by uckkk that provides the core `cafe_order` capability, returning coffee brewing recipes based on input parameters. The plugin is implemented entirely in Node, has no network dependencies, and is released under the MIT license. Developers can install it via the specified command and invoke its registered tool within a session to enable ordering capabilities.