feat(l10n): add authentication and subscription status translations

- Add new translations for authentication and subscription status in Arabic and English
- Include column headers and status descriptions for both languages
- Enhance filter dialog and data table translations

Author: fulleni

lib/l10n/arb/app_ar.arb

@@ -1987,5 +1987,29 @@
   "selectDashboardRoles": "اختر أدوار لوحة التحكم",
   "@selectDashboardRoles": {
     "description": "نص تلميح لاختيار أدوار لوحة التحكم في مربع حوار التصفية."
+  },
+  "authentication": "المصادقة",
+  "@authentication": {
+    "description": "رأس العمود لحالة المصادقة"
+  },
+  "subscription": "الاشتراك",
+  "@subscription": {
+    "description": "رأس العمود لحالة الاشتراك"
+  },
+  "authenticationAnonymous": "مجهول",
+  "@authenticationAnonymous": {
+    "description": "حالة المصادقة لمستخدم ضيف"
+  },
+  "authenticationAuthenticated": "موثق",
+  "@authenticationAuthenticated": {
+    "description": "حالة المصادقة لمستخدم قام بتسجيل الدخول"
+  },
+  "subscriptionFree": "مجاني",
+  "@subscriptionFree": {
+    "description": "حالة الاشتراك لمستخدم مجاني"
+  },
+  "subscriptionPremium": "مميز",
+  "@subscriptionPremium": {
+    "description": "حالة الاشتراك لمستخدم مميز"
   }
 }

lib/l10n/arb/app_en.arb

@@ -1983,5 +1983,29 @@
   "selectDashboardRoles": "Select Dashboard Roles",
   "@selectDashboardRoles": {
     "description": "Hint text for selecting dashboard roles in a filter dialog."
+  },
+  "authentication": "Authentication",
+  "@authentication": {
+    "description": "Column header for authentication status"
+  },
+  "subscription": "Subscription",
+  "@subscription": {
+    "description": "Column header for subscription status"
+  },
+  "authenticationAnonymous": "Anonymous",
+  "@authenticationAnonymous": {
+    "description": "Authentication status for a guest user"
+  },
+  "authenticationAuthenticated": "Authenticated",
+  "@authenticationAuthenticated": {
+    "description": "Authentication status for a signed-in user"
+  },
+  "subscriptionFree": "Free",
+  "@subscriptionFree": {
+    "description": "Subscription status for a free user"
+  },
+  "subscriptionPremium": "Premium",
+  "@subscriptionPremium": {
+    "description": "Subscription status for a premium user"
   }
 }