Compensation
Service-provided serializer for compensation events that flow on each microservice's internal saga-compensation-<participant> topic.
The wire format (Avro / JSON / Protobuf) is an implementation detail of the owning service; the saga engine consumes only the resulting ByteArray. Paired with CompensationCommandDeserializer on the consuming side.
The type parameter TCommand is the service-local, strongly-typed compensation command (typically a Kotlin sealed interface mirroring the Avro tagged union). Keeping it generic means the shared engine never speaks in Map<String, Any?> and there are no stringly-typed action discriminators at the integration boundary.