breadcrumbs had a watch subcommand meant to run continuously but no
systemd unit anywhere, so bakery installs never actually started it -
Wi-Fi profile config in bos-settings had no daemon consuming it.
Core WiFi management works without Tailscale. tailscale, sudo, and
xdg-utils are only needed for Tailscale login and URL-open features,
so they become optional (warn, don't block) instead of required.
- bakery.toml: describes breadcrumbs for bakery install
- release.yml: builds on hestia self-hosted runner, publishes binary to
dl.breadway.dev and GitHub Releases on v* tags
- flow.rs/nm.rs: connect_and_verify now returns Result<(), String> with
a descriptive error message instead of a bare bool
