using-git-worktrees

Isolated workspace - before feature work that needs isolation from the current workspace or before executing a plan: detect existing isolation first, prefer native worktree tools (e.g. Claude Code EnterWorktree), fall back to manual git worktree; ensure dependencies installed and the test baseline is green. / 隔离工作区——开始需要与当前工作区隔离的功能开发、或执行实施计划之前使用。先检测已有隔离，优先平台原生 worktree 工具（如 Claude Code 的 EnterWorktree），无原生工具才降级手工 git worktree。确保隔离工作区就绪、依赖安装完成、测试基线干净。