Backup, restore, download and GitHub-sync DeepSeek Harness user data (~/.dsh): /backup, scheduled auto-backup that survives restarts, sha256 checksums, integrity verify, rotation, credential redaction with a local vault (plaintext never leaves the machine

File-diff visualization between checkpoint time nodes for DeepSeek Harness: a read-only timeline + per-file line diff over the dsh-checkpoint-rewind checkpoints storage domain, with preview-first rollback (restore workspace files from any time node, singl