git-sync - 로컬 체크아웃 없이 Git 리모트 간 ref를 직접 미러링하는 CLI 도구

git-sync eliminates the need for full local clones when syncing between Git repositories, dramatically reducing disk and bandwidth requirements for large repositories. Its memory-efficient streaming approach and JSON output make it ideal for automation pipelines and CI/CD systems that need to synchronize repositories at scale. The tool's flexibility with multiple sync modes and comprehensive ref management commands addresses both simple and complex repository replication scenarios.