feat: 重构对话功能

electron/gateway/handlers/provider.ts

@@ -0,0 +1,13 @@
+import { providerApiService } from '@electron/service/provider-api-service';
+import type { GatewayRpcReturns } from '../types';
+
+export function handleProviderList(): GatewayRpcReturns['provider.list'] {
+  return {
+    accounts: providerApiService.getAccounts(),
+    defaultAccountId: providerApiService.getDefault().accountId,
+  };
+}
+
+export function handleProviderGetDefault(): GatewayRpcReturns['provider.getDefault'] {
+  return providerApiService.getDefault();
+}