dsh-tea-store: Tea Storage Guide

`dsh-tea-store` is a DeepSeek Harness (DSH) plugin maintained by istone, focusing on providing tea storage guidance. It is implemented in pure Node.js, requires no network access, and depends only on `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`. It can be installed using `dsh plugin add github:uckkk/dsh-tea-store`. Once installed, you can directly invoke the tools it provides within DSH sessions to obtain tea art solutions.