OptionaldiagnosticsDiagnostics channel for surfacing silent fallbacks.
OptionalioSide of every transform / pipe / codec to render. Defaults to
"output", matching z.toJSONSchema's default and the
historic behaviour of the adapter. Passing "input" flips the
conversion so consumers rendering the input shape of a
z.codec(...) chain receive that side instead of the output
side. Only the Zod 4 branch consults this option — JSON Schema
and OpenAPI inputs are already a single canonical shape.
Options accepted by normaliseSchema.