feat(ucs): add gateway system {Direct | UnifiedConnectorSystem} in feature metadata for v1 (#8854)

crates/common_enums/src/enums.rs

@@ -2220,6 +2220,34 @@ pub enum PaymentMethod {
     MobilePayment,
 }
 
+/// Indicates the gateway system through which the payment is processed.
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Default,
+    Eq,
+    PartialOrd,
+    Ord,
+    Hash,
+    PartialEq,
+    serde::Deserialize,
+    serde::Serialize,
+    strum::Display,
+    strum::VariantNames,
+    strum::EnumIter,
+    strum::EnumString,
+    ToSchema,
+)]
+#[router_derive::diesel_enum(storage_type = "text")]
+#[serde(rename_all = "snake_case")]
+#[strum(serialize_all = "snake_case")]
+pub enum GatewaySystem {
+    #[default]
+    Direct,
+    UnifiedConnectorService,
+}
+
 /// The type of the payment that differentiates between normal and various types of mandate payments. Use 'setup_mandate' in case of zero auth flow.
 #[derive(
     Clone,