feat(sdk-api): add EVM configuration support to BitGoAPI constructor

- Add optional evm config object to BitGoAPIOptions interface
- Process EVM network configurations with API tokens during initialization
- Store EVM configs in common.Environments[env]['evm'] structure
- Maintain backward compatibility with existing API token patterns

Enables programmatic configuration of multiple EVM network API tokens
through the SDK constructor for better multi-chain support.

Ticket: WIN-6108

Author: parasgarg-bitgo

modules/sdk-api/src/bitgoAPI.ts

@@ -258,6 +258,17 @@ export class BitGoAPI implements BitGoBase {
       }
     });
 
+    if (params.evm) {
+      const evmConfig = common.Environments[env]['evm'] || {};
+      Object.keys(params.evm).forEach((key) => {
+        if (params.evm?.[key] && params.evm[key]['apiToken']) {
+          evmConfig[key] = evmConfig[key] || {};
+          evmConfig[key]['apiToken'] = params.evm[key]['apiToken'];
+        }
+      });
+      common.Environments[env]['evm'] = evmConfig;
+    }
+
     common.setNetwork(common.Environments[env].network);
 
     this._baseApiUrl = this._baseUrl + '/api/v1';

modules/sdk-api/src/types.ts

@@ -46,6 +46,12 @@ export interface BitGoAPIOptions {
   validate?: boolean;
   cookiesPropagationEnabled?: boolean;
   getAdditionalHeadersCb?: AdditionalHeadersCallback;
+  evm?: {
+    [key: string]: {
+      baseUrl: string;
+      apiToken?: string;
+    };
+  };
 }
 
 export interface AccessTokenOptions {