dsh-cold-drink: Cold Drink Preparation

`dsh-cold-drink` is a DeepSeek Harness (DSH) plugin focused on "cold drink preparation" scenarios and maintained by `uckkk`. It accepts input via parameters and returns drink preparation solutions implemented in pure Node.js, with no network dependencies. It depends on the `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools` environments. Once installed, it can be invoked directly in a session, suitable for scenarios that need to generate drink preparation solutions in conversations or workflows.