`FormSchemaService::publish()` now verifies that every binding path
declared by the schema's PurposeDefinition::requiredBindings is present
on at least one of the schema's `form_fields.binding` JSON entries.
Missing bindings raise PurposeRequirementsNotMetException with a
structured `purposeSlug` + `missingBindings[]` payload.
v1.0 this is a trivial JSON scan; in WS-5a the check will switch to
the relational `form_field_bindings` table.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bert.hausmans
a71201f4d3