feat(sdk-coin-evm): enable message signing for base

Ticket: SC-3598

Author: derekchen745

modules/sdk-coin-ethlike/src/ethlikeCoin.ts

@@ -54,14 +54,4 @@ export class EthLikeCoin extends AbstractEthLikeNewCoins {
     const explorerUrl = common.Environments[this.bitgo.getEnv()][this.getFamily().toLowerCase() + 'ExplorerUrl'];
     return await recoveryBlockchainExplorerQuery(query, explorerUrl as string, apiToken);
   }
-
-  /** @inheritDoc */
-  supportsMessageSigning(): boolean {
-    return true;
-  }
-
-  /** @inheritDoc */
-  supportsSigningTypedData(): boolean {
-    return true;
-  }
 }

modules/sdk-coin-evm/src/evmCoin.ts

@@ -43,6 +43,16 @@ export class EvmCoin extends AbstractEthLikeNewCoins {
     return 'ecdsa';
   }
 
+  /** @inheritDoc */
+  supportsMessageSigning(): boolean {
+    return true;
+  }
+
+  /** @inheritDoc */
+  supportsSigningTypedData(): boolean {
+    return true;
+  }
+
   protected async buildUnsignedSweepTxnTSS(params: RecoverOptions): Promise<OfflineVaultTxInfo | UnsignedSweepTxMPCv2> {
     if (this.staticsCoin?.features.includes(CoinFeature.MPCV2)) {
       return this.buildUnsignedSweepTxnMPCv2(params);