CRUD for WidgetAdapterSpec (index, show, new/create, edit/update — status+notes only
after creation). Widget new/edit forms expose optional adapter_spec_id select.
Widget show page renders adapter badge with link to spec. Widgets controller
fetches adapter spec for show action.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
T02: EnvelopeEmissionContractsController (index+show, read-only); widgetEnvelope
helper validates against contract v1.0 required attributes with inline warning
on missing view-context; adapterStatusBadge helper added to Application.Helper.View.
T03: InteractionReportingContractsController (index+show, read-only); API endpoint
POST /api/v1/interaction-events with bearer token auth against hub.api_key,
contract v1.0 field validation, and 201/422/401 responses.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>