cn-linebreak: A Line-Break Review and Fix Tool for Chinese Web Text

`cn-linebreak` is a zero-dependency Node.js tool designed to audit and fix line-break issues in Chinese web copy. It can detect errors such as orphaned single-character lines, punctuation rule violations, and missing CSS protection rules, and it can automatically insert `<wbr>` tags at pause points. The tool provides static auditing, agent-based invocation, and a CLI interface, making it suitable for integration into a DeepSeek Harness workflow; however, its limitations should be noted: it cannot perceive actual browser rendering results, and its fix mode requires manual review.