chore(gasless-bridge): add gaslessBridgeWith7702Enabled feature flag (#568)

Author: rarquevaux

src/constants.ts

@@ -51,6 +51,7 @@ export const DEFAULT_DISABLED_SMART_TRANSACTIONS_FEATURE_FLAGS = {
     extensionReturnTxHashAsapBatch: false,
     mobileReturnTxHashAsap: false,
     extensionSkipSmartTransactionStatusPage: false,
+    gaslessBridgeWith7702Enabled: false,
     batchStatusPollingInterval: 1000,
   },
 } as const;

src/featureFlags/validators.ts

@@ -48,6 +48,8 @@ export const SmartTransactionsNetworkConfigSchema = type({
   extensionSkipSmartTransactionStatusPage: optional(boolean()),
   /** Polling interval in milliseconds for batch status updates */
   batchStatusPollingInterval: optional(number()),
+  /** Whether gasless bridge with 7702 is enabled for the network */
+  gaslessBridgeWith7702Enabled: optional(boolean()),
   /** Custom sentinel URL for the network */
   sentinelUrl: optional(string()),
 });