dsh-whale-writing: DeepSeek Harness Writing Enhancement Plugin

The dsh-whale-writing plugin for DeepSeek Harness (DSH) is designed to address common issues in long-form writing with large models, such as rigid style, memory loss, and a strong “AI-like” tone. It features three core modules: writing modes (automatic dual switching between style and strictness), project memory (three-part structure management based on .mem/config.md), and post-processing to reduce the AI-like tone (the whale_polish dynamic tool). Users can interact with and configure the plugin via the quick bar or model tools. The plugin does not include a standalone settings page and depends on the DSH core package; users should pay attention to the environment version and installation method to avoid runtime errors.