fix(i18n): correct Hebrew translation for idle status

Replace nonsensical "בסרלה" with "מוכן" (ready) for instanceTab.status.idle.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/ui/src/lib/i18n/messages/he/instance.ts

@@ -20,7 +20,7 @@ export const instanceMessages = {
   "instanceTab.status.permission": "ממתין לאישור",
   "instanceTab.status.compacting": "מסכם",
   "instanceTab.status.working": "עובד",
-  "instanceTab.status.idle": "בסרלה",
+  "instanceTab.status.idle": "מוכן",
   "instanceTab.status.ariaLabel": "סטטוס מופע: {status}",
   "instanceTab.actions.close.ariaLabel": "סגור מופע",