feat: add EVM_KEYRING_UNSUPPORTED coin feature flag

Ticket: CGD-969

TICKET: CGD-969

Author: HimanshuS2212

modules/statics/src/base.ts

@@ -509,6 +509,12 @@ export enum CoinFeature {
    */
   EVM_COMPATIBLE_WP = 'evm-compatible-wp',
 
+  /**
+   * This coin does not support EVM Keyring.
+   * Add this feature to any EVM-family coin that should be excluded from EVM Keyring
+   */
+  EVM_KEYRING_UNSUPPORTED = 'evm-keyring-unsupported',
+
   /**
    * This token is internal and shouldn't be exposed to users
    */

modules/statics/src/coinFeatures.ts

@@ -602,7 +602,10 @@ export const COREDAO_FEATURES = [
   CoinFeature.EIP1559,
   CoinFeature.ERC20_BULK_TRANSACTION,
 ];
-export const TEMPO_FEATURES = EVM_FEATURES.filter((feature) => feature !== CoinFeature.ENTERPRISE_PAYS_FEES);
+export const TEMPO_FEATURES = [
+  ...EVM_FEATURES.filter((feature) => feature !== CoinFeature.ENTERPRISE_PAYS_FEES),
+  CoinFeature.EVM_KEYRING_UNSUPPORTED,
+];
 export const HYPERLIQUID_FEATURES = [
   ...ACCOUNT_COIN_DEFAULT_FEATURES,
   CoinFeature.MULTISIG_COLD,