fix(editor): ensure preferred editor setting updates immediately (#12981)

packages/cli/src/config/settingPaths.ts

@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export const SettingPaths = {
+  General: {
+    PreferredEditor: 'general.preferredEditor',
+  },
+} as const;

packages/cli/src/config/settings.ts

@@ -33,6 +33,7 @@ import { resolveEnvVarsInObject } from '../utils/envVarResolver.js';
 import { customDeepMerge, type MergeableObject } from '../utils/deepMerge.js';
 import { updateSettingsFilePreservingFormat } from '../utils/commentJson.js';
 import type { ExtensionManager } from './extension-manager.js';
+import { SettingPaths } from './settingPaths.js';
 
 function getMergeStrategyForPath(path: string[]): MergeStrategy | undefined {
   let current: SettingDefinition | undefined = undefined;
@@ -108,7 +109,7 @@ const MIGRATION_MAP: Record<string, string> = {
   memoryImportFormat: 'context.importFormat',
   memoryDiscoveryMaxDirs: 'context.discoveryMaxDirs',
   model: 'model.name',
-  preferredEditor: 'general.preferredEditor',
+  preferredEditor: SettingPaths.General.PreferredEditor,
   retryFetchErrors: 'general.retryFetchErrors',
   sandbox: 'tools.sandbox',
   selectedAuthType: 'security.auth.selectedType',