Optional ReadonlybandsThe reader's resolution — ?bands=N. Absent = the row as it stands.
Whether the reader asked for one instance of path.
Whether the reader asked for path ITSELF — its own address, a window over it, a demand
entry naming it — as opposed to being owed it through a row it carries. A carried
collection serves the whole frame to a reader that reads it and the demanded subset to one
that only declared instances.
What one READER of a row is: its resolution and its demand — the two things a served body may be narrowed by. A
GETis the whole row (WHOLE_VIEW); a?watch=1subscriber answers from its own dial and demand list. Handed to ConsoleResource.served so a row's projection is written once and applied at both doors — the streams law's construction.