dsh-composer-polish: One-Click Polish Plugin for DeepSeek Harness Composer Drafts

dsh-composer-polish is a plugin designed for DeepSeek Harness (DSH) that aims to quickly polish drafts in the Composer input box before sending. It adds a "✨" button to the toolbar, utilizing the `deepseek-v4-flash` model to rewrite draft text in a streaming manner. Its core features include replacing only the text content while ignoring image attachments, preserving code blocks, paths, and terminology unchanged, and backfilling the rewritten results into the input box for user preview and editing rather than directly sending messages. The plugin also features comprehensive interaction state management, such as button disabling, loading prompts, and prevention of duplicate requests. For privacy considerations, the original draft is not written to the session log; only the polished result is recorded. Installation requires initial configuration of the DSH CLI, followed by adding the plugin via the specified version v0.1.4 and restarting the service.