dsh-code-impact: Read-only TypeScript/JavaScript Change Impact Analysis for DeepSeek Harness

dsh-code-impact is a standalone read-only plugin released by the DeepSeek Harness community, designed to provide impact analysis for TypeScript/JavaScript Git changes. The plugin is maintained by baidd1011, licensed under the MIT License, and is currently at version 0.2.0. By temporarily building a reverse module dependency graph, it outputs changed declarations, affected files, propagation paths, evidence locations, and sorted test candidates, though it does not replace test execution or maintain a long-term index. The plugin supports three comparison modes: workspace, staged, and refs. It utilizes the TypeScript Compiler API to parse various file types and project configurations (such as `tsconfig.json`, path aliases, etc.), and via Sche...