dsh-ink-tools: Brush, Ink, Paper, and Inkstone Plugin

The dsh-ink-tools (Ink, Brush, Paper, and Inkstone) plugin for DeepSeek Harness (DSH) follows the "everything is a plugin" philosophy and was developed by uckkk. This pure Node.js tool requires no internet connection and primarily provides the `ink_tools` feature, which can generate calligraphy learning plans based on parameters. Developers must install the plugin via the DSH CLI; once loaded, it can be invoked. Since the plugin runs with process-level privileges, it is recommended to review its source code and MIT license before installation.