branch

Makes the branch the building block of AI conversation management — parallel workflows, continuous and mergeable conversation memory

DSH 永久插件：LVAL 工程运行/代码查看/程序版本快照回退 + VTD 虚拟对话树（编辑/重试/分支、消息小版本）+ DET 管理器。A permanent DeepSeek Harness plugin: project run & code viewer, program snapshots, an in-session conversation tree (edit/retry/branches), message micro-versions and a feature manager.

DSH 插件：会话视图实时 git 状态展示 + 分支切换（会话头徽标 + 输入区环境行）。官方 bundle 插件，dsh plugin --profile web add：github:shenhuanageshei/dsh-git-status#v0.1.0