dsh-rules-paths: Adding Claude Code-Style Path Rule Injection to DeepSeek Harness

The **dsh-rules-paths** plugin is a core extension component of DeepSeek Harness (DSH), designed to address the problem of models having difficulty remembering specific specifications in large projects. It is based on Claude Code's `paths:` mechanism; when the model reads files that match a rule, it injects the rule body into the context. Core features include: defining `paths` glob matching patterns via YAML Frontmatter, supporting both global and project-level rule scanning (`.dsh/rules` and `.claude/rules`); and providing SHA-1 deduplication, byte budget control, and a replacement mechanism. Installation requires using a GitHub repository command and manually activating it in a preset. The plugin requires DSH 0.1.0-rc.x (We