The logistics layer EU supply chain compliance is missing.

// koto7 — DPPPassportLifecycleWorkflow
// Survives years of ownership transfer,
// certification, and end-of-life

func DPPPassportLifecycleWorkflow(
	ctx workflow.Context,
	passportID string,
) error {
	logger := workflow.GetLogger(ctx)

	for {
		selector := workflow.NewSelector(ctx)

		var signal PassportSignal
		signalChan := workflow.GetSignalChannel(
			ctx, "PassportEvent")

		selector.AddReceive(signalChan,
			func(c workflow.ReceiveChannel, _ bool) {
				c.Receive(ctx, &signal)
			})

		selector.Select(ctx)

		// Update passport state durably
		err := workflow.ExecuteActivity(ctx,
			UpdatePassportState,
			passportID, signal,
		).Get(ctx, nil)
		if err != nil {
			logger.Error("state update failed",
				"error", err)
		}

		// Mint to public chain on certification
		if signal.Type == "CertificationReceived" {
			workflow.ExecuteActivity(ctx,
				MintStateHash, passportID)
		}

		// continueAsNew — stay within
// Temporal history limits
		info := workflow.GetInfo(ctx)
		if info.GetCurrentHistoryLength() > 9000 {
			return workflow.NewContinueAsNewError(
				ctx, DPPPassportLifecycleWorkflow,
				passportID)
		}
	}
}