ad41bed8b8
User veto (2026-07-03) of the per-cell tagged Scalar draft: the kind is a
property of the parameter, not of each value. An axis is now
{"kind": "I64", "values": [8, 12, 16]} — mixed-kind axes are
unrepresentable, canonical form normalizes value spelling, and the
referential kind check is one comparison per axis. Op-script binds keep
their tagged form (single-value slots). Decision log: #189.
refs #189