Rendering every `const` read-only assumed the caller had already seeded it,
which SchemaForm never did itself: `InlineElicitationRequest` passes its
values straight through and gates submit on hasMissingRequiredFields, so a
required `const` — a root union's discriminator among them — was displayed
and never supplied, leaving Submit disabled with no way to fix it.
The form now reports the fixed values upward once per entity, in an effect (the
parent's `onChange` cannot be called during our render), adding only names
absent from `values` — so a caller that already seeds sees no call at all and
the report cannot loop.
Signed-off-by: cliffhall <cliff@futurescale.com>
67e7a4ca1a