【中文说明】用于检查和改写Git提交信息，使其符合Conventional Commits规范，并清晰表达修改类型、范围及原因。粘贴现有提交信息，最好同时提供暂存变更摘要或差异，让AI给出修改前后对照及解释，适合合并前整理和团队培训。 Reviews and rewrites Git commit messages to Conventional Commits quality — clear type/scope, imperative subject, useful body explaining why — and trains the author with concrete before/after feedback.
