fixed rail & operation names

api/pkg/discovery/operations.go

@@ -2,6 +2,12 @@ package discovery
 
 import "strings"
 
+// Rail identifies a canonical payment rail token.
+type Rail string
+
+// RailOperation identifies a canonical payment-plan rail action token.
+type RailOperation string
+
 const (
 	OperationDiscoveryLookup = "discovery.lookup"
 
@@ -33,6 +39,33 @@ const (
 	OperationFXConvert      = "fx.convert"
 )
 
+// Canonical rail identifiers.
+const (
+	RailUnspecified        = "UNSPECIFIED"
+	RailCrypto             = "CRYPTO"
+	RailProviderSettlement = "SETTLEMENT"
+	RailLedger             = "LEDGER"
+	RailCardPayout         = "CARD"
+	RailFiatOnRamp         = "ONRAMP"
+	RailFiatOffRamp        = "OFFRAMP"
+)
+
+// Canonical payment-plan rail operation identifiers.
+const (
+	RailOperationUnspecified    = "UNSPECIFIED"
+	RailOperationDebit          = "DEBIT"
+	RailOperationCredit         = "CREDIT"
+	RailOperationExternalDebit  = "EXTERNAL_DEBIT"
+	RailOperationExternalCredit = "EXTERNAL_CREDIT"
+	RailOperationMove           = "MOVE"
+	RailOperationSend           = "SEND"
+	RailOperationFee            = "FEE"
+	RailOperationObserveConfirm = "OBSERVE_CONFIRM"
+	RailOperationFXConvert      = "FX_CONVERT"
+	RailOperationBlock          = "BLOCK"
+	RailOperationRelease        = "RELEASE"
+)
+
 // NormalizeOperation canonicalizes an operation string for comparisons.
 func NormalizeOperation(value string) string {
 	return strings.ToLower(strings.TrimSpace(value))