Fix(grep): memory overflow in grep search and enhance test coverage (#5911)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/cli/src/config/settingsSchema.test.ts

@@ -52,6 +52,7 @@ describe('SettingsSchema', () => {
         'model',
         'hasSeenIdeIntegrationNudge',
         'folderTrustFeature',
+        'useRipgrep',
       ];
 
       expectedSettings.forEach((setting) => {