Rename design r2, "Selector scopes and parser matrix", case2-install row. --org/--business
and --org-file/--business-file are two families, each its own scope: each spelling once, and
a second spelling must carry the same text (file paths compared as given). Missing values
are usage; a flag-shaped or invalid id keeps the business-id refusal; a flag-shaped file, a
repeated spelling and a conflict say why. All exit 4 before anything is read or written.
The persona-import call it spawns still passes --business.