feat(core): enable retryFetchErrors by default

Transient "fetch failed" network errors are common in non-interactive
contexts; the retry infrastructure exists but was off by default.

packages/cli/src/config/settingsSchema.ts

@@ -302,7 +302,7 @@ const SETTINGS_SCHEMA = {
         label: 'Retry Fetch Errors',
         category: 'General',
         requiresRestart: false,
-        default: false,
+        default: true,
         description:
           'Retry on "exception TypeError: fetch failed sending request" errors.',
         showInDialog: false,

packages/core/src/config/config.ts

@@ -852,8 +852,9 @@ export class Config {
     this.continueOnFailedApiCall = params.continueOnFailedApiCall ?? true;
     this.enableShellOutputEfficiency =
       params.enableShellOutputEfficiency ?? true;
+    const defaultShellTimeout = this.interactive ? 300 : 600; // 5 min interactive, 10 min non-interactive
     this.shellToolInactivityTimeout =
-      (params.shellToolInactivityTimeout ?? 300) * 1000; // 5 minutes
+      (params.shellToolInactivityTimeout ?? defaultShellTimeout) * 1000;
     this.extensionManagement = params.extensionManagement ?? true;
     this.enableExtensionReloading = params.enableExtensionReloading ?? false;
     this.storage = new Storage(this.targetDir, this.sessionId);
@@ -877,7 +878,7 @@ export class Config {
     this.outputSettings = {
       format: params.output?.format ?? OutputFormat.TEXT,
     };
-    this.retryFetchErrors = params.retryFetchErrors ?? false;
+    this.retryFetchErrors = params.retryFetchErrors ?? true;
     this.disableYoloMode = params.disableYoloMode ?? false;
     this.rawOutput = params.rawOutput ?? false;
     this.acceptRawOutputRisk = params.acceptRawOutputRisk ?? false;