v0.7.1

Changed

• archive init help and the README now steer you to a remote. rawclaw archive init --help and the README explain the choice a first-time user actually faces: a bare repo over SSH on a box you control is the most private option (transcripts never leave your network, nothing to encrypt); a private GitHub / GitLab / Gitea repo is convenient but stores transcripts unencrypted, so it must stay private. Both also note that adding a second machine is the same init command, and that machines sharing a hostname need a distinct --name. Docs only — no behavior change.