Pin bread-utils to bread-ecosystem v0.7.2. breadshot listen
subscribes to bread.command.shot.**, runs the same region capture
as the CLI (clipboard-only), and emits bread.shot.region.done /
.failed.
bread-utils moves from bread-ecosystem tag v0.3.0 to v0.7.1.
README states breadshot is the grim/slurp/wl-copy orchestrator BOS
binds Super+Shift+S/C/P to (not grimblast), not a GUI editor, and
not bread-screenshots.