dsh-base-makeup: Base Makeup Techniques Plugin

The `dsh-base-makeup` plugin of DeepSeek Harness (DSH) is built on the “everything is a plugin” philosophy and focuses on providing base makeup solutions for fun-oriented scenarios. The plugin registers a `base_makeup` tool that returns daily makeup suggestions based on parameters. Users can install it with the command `dsh plugin add github:uckkk/dsh-base-makeup`. It is implemented in pure Node.js, has no network dependencies, and is licensed under the MIT License.