JJXjustin/dsh-session-rewind

Session and file rewind for DeepSeek Harness: checkpoint version points into a session's event log, rewind a session to any version point (archiving the original log, physically rebuilding the log file, and refreshing the projection cache), optionally pin shadow-repo git anchors for file-level restore, plus a chat UI entry to list/preview/confirm rewinds after each turn. · DSH ： ， （ 、 、 ）， git ， UI 。