Closes the F5 authoring gap: a campaign's strategy ref + axes are now
authorable from the public surface without running a sweep first.
'aura graph register <blueprint.json>' puts the canonical form into the
content-addressed store (id == topology hash) and prints the stored
path via the pub blueprint_path accessor; 'aura graph introspect
--params <FILE|64-hex-ID>' lists the RAW composite param_space — the
exact namespace campaign axes are validated against (the wrapped
--list-axes namespace stays the sweep-verb view); --content-id gains an
optional FILE that shape-discriminates a blueprint envelope from an
op-list document (stdin behaviour byte-identical without FILE).
is_content_id promoted pub(crate) and shared with graph_construct so
the two FILE-or-id surfaces cannot drift on the id shape.
RED evidence was produced retroactively by the loop (stash-probe: the
5 new tests fail for the expected reasons without the src changes) —
ordering deviation noted, outcome unaffected.
Gates: graph_ 46/0, workspace 987/0, clippy -D warnings clean.
closes#196
refs #198
Brummel
367f8678f1