feat(tokenio): Add OpenBanking Redirection Flow (#8152)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/api_models/src/admin.rs

@@ -1001,21 +1001,122 @@ pub struct RevenueRecoveryMetadata {
 #[derive(Debug, Clone, serde::Deserialize, serde::Serialize, ToSchema)]
 #[serde(rename_all = "snake_case")]
 pub enum MerchantAccountData {
+    /// IBAN-based account for international transfers
     Iban {
-        #[schema(value_type= String)]
+        /// International Bank Account Number (up to 34 characters)
+        #[schema(value_type = String)]
         iban: Secret<String>,
+
+        /// Account holder name
         name: String,
-        #[schema(value_type= Option<String>)]
+        #[schema(value_type = Option<String>)]
         #[serde(skip_serializing_if = "Option::is_none")]
         connector_recipient_id: Option<Secret<String>>,
     },
+    /// UK BACS payment system
     Bacs {
-        #[schema(value_type= String)]
+        /// 8-digit UK account number
+        #[schema(value_type = String)]
         account_number: Secret<String>,
-        #[schema(value_type= String)]
+
+        /// 6-digit UK sort code
+        #[schema(value_type = String, example = "123456")]
         sort_code: Secret<String>,
+
+        /// Account holder name
         name: String,
-        #[schema(value_type= Option<String>)]
+
+        #[schema(value_type = Option<String>)]
+        #[serde(skip_serializing_if = "Option::is_none")]
+        connector_recipient_id: Option<Secret<String>>,
+    },
+    /// UK Faster Payments (instant transfers)
+    FasterPayments {
+        /// 8-digit UK account number
+        #[schema(value_type = String)]
+        account_number: Secret<String>,
+        /// 6-digit UK sort code
+        #[schema(value_type = String)]
+        sort_code: Secret<String>,
+
+        /// Account holder name
+        name: String,
+
+        #[schema(value_type = Option<String>)]
+        #[serde(skip_serializing_if = "Option::is_none")]
+        connector_recipient_id: Option<Secret<String>>,
+    },
+
+    /// SEPA payments (Euro zone)
+    Sepa {
+        /// IBAN for SEPA transfers
+        #[schema(value_type = String, example = "FR1420041010050500013M02606")]
+        iban: Secret<String>,
+        /// Account holder name
+        name: String,
+        #[schema(value_type = Option<String>)]
+        #[serde(skip_serializing_if = "Option::is_none")]
+        connector_recipient_id: Option<Secret<String>>,
+    },
+
+    /// SEPA Instant payments (10-second transfers)
+    SepaInstant {
+        /// IBAN for instant SEPA transfers
+        #[schema(value_type = String, example = "DE89370400440532013000")]
+        iban: Secret<String>,
+
+        /// Account holder name
+        name: String,
+
+        #[schema(value_type = Option<String>)]
+        #[serde(skip_serializing_if = "Option::is_none")]
+        connector_recipient_id: Option<Secret<String>>,
+    },
+
+    /// Polish Elixir payment system
+    Elixir {
+        /// Polish account number (26 digits)
+        #[schema(value_type = String, example = "12345678901234567890123456")]
+        account_number: Secret<String>,
+
+        /// Polish IBAN (28 chars)
+        #[schema(value_type = String, example = "PL27114020040000300201355387")]
+        iban: Secret<String>,
+
+        /// Account holder name
+        name: String,
+
+        #[schema(value_type = Option<String>)]
+        #[serde(skip_serializing_if = "Option::is_none")]
+        connector_recipient_id: Option<Secret<String>>,
+    },
+
+    /// Swedish Bankgiro system
+    Bankgiro {
+        /// Bankgiro number (7-8 digits)
+        #[schema(value_type = String, example = "5402-9656")]
+        number: Secret<String>,
+
+        /// Account holder name
+        #[schema(example = "Erik Andersson")]
+        name: String,
+
+        #[schema(value_type = Option<String>)]
+        #[serde(skip_serializing_if = "Option::is_none")]
+        connector_recipient_id: Option<Secret<String>>,
+    },
+
+    /// Swedish Plusgiro system
+    Plusgiro {
+        /// Plusgiro number (2-8 digits)
+        #[schema(value_type = String, example = "4789-2")]
+        number: Secret<String>,
+
+        /// Account holder name
+        #[schema(example = "Anna Larsson")]
+        name: String,
+
+        #[schema(value_type = Option<String>)]
         #[serde(skip_serializing_if = "Option::is_none")]
         connector_recipient_id: Option<Secret<String>>,
     },