400bd9b9f1
The previous commit put the bws install on the private/bws-secrets row as a tarball channel. That row can never install anything: selected_packages drops every row flagged `private`, which is the invariant that makes --unattended safe to run. The container proved it — unzip installed, bws did not, and the row still could not deliver on its promise. Nor can it be a safe row: the defaults preset ticks every safe package, so that would put a Bitwarden binary and a 12 MB GitHub download on every throwaway public VM, for a tool those machines have no credential to use. So ensure_bws lives in dotup and is called from cmd_private immediately after the token is written. Nothing installs bws unless something is about to hand it a token, and the manifest keeps its invariant. core/unzip stays a real package with the @needs edge — the release is a .zip and 24.04 minimal has no unzip.