all the refactor

pkg/order/flow_test.go

@@ -41,6 +41,9 @@ func newFlowRegistry(pool Applier, provider PaymentProvider) *flow.Registry {
 	reg := flow.NewRegistry()
 	flow.RegisterBuiltinHooks(reg)
 	RegisterFlowActions(reg, pool, provider)
+	// place-and-pay references the emit_order_created hook; register it (nil
+	// publisher = no-op) so flow validation passes in tests too.
+	RegisterOrderCreatedEmit(reg, pool, nil, "order", "order")
 	return reg
 }