Retrieves the list of WEB opt-in / consent properties.

GET /api/v1/identity/optins

SOAP Equivalent: ACP_GetListOptins

SOAP to REST Field Mapping

REST Field	SOAP Field	Notes
propertyId	ID_Property	Property identifier
label	Label	Display label
dataType	DataType	Property data type
valueBoolean	sel	PrefValue converted to boolean

Scoped by the x-tenant header; the session context (institution) is validated first.