Add subscription translations and collapsible categories in AdminSettings

- Add 65+ new translations for subscription, trial, traffic, autopay settings
- Replace flat navigation with accordion-style collapsible subcategories
- Categories are collapsed by default, click to expand
- Search shows flat list when query is present
- Remove unused ChevronRightIcon and activeSubCategory state

src/locales/ru.json

@@ -925,7 +925,74 @@
         "Channel Id": "ID канала",
         "Channel Url": "URL канала",
         "Timezone": "Часовой пояс",
-        "Locale Default": "Язык"
+        "Locale Default": "Язык",
+        "Simple Subscription Device Limit": "Лимит устройств",
+        "Simple Subscription Enabled": "Быстрая покупка",
+        "Simple Subscription Period Days": "Период (дни)",
+        "Simple Subscription Squad Uuid": "UUID сквада",
+        "Simple Subscription Traffic Gb": "Трафик (ГБ)",
+        "Trial Activation Price": "Цена активации",
+        "Trial Add Remaining Days To Paid": "Добавить дни к платной",
+        "Trial Device Limit": "Лимит устройств",
+        "Trial Duration Days": "Длительность (дни)",
+        "Trial Payment Enabled": "Платный триал",
+        "Trial Tariff Id": "ID тарифа",
+        "Trial Traffic Limit Gb": "Лимит трафика (ГБ)",
+        "Trial User Tag": "Тег пользователя",
+        "Trial Warning Hours": "Предупреждение (час)",
+        "Paid Subscription User Tag": "Тег платной подписки",
+        "Price 14 Days": "Цена 14 дней",
+        "Price 180 Days": "Цена 180 дней",
+        "Price 30 Days": "Цена 30 дней",
+        "Price 360 Days": "Цена 360 дней",
+        "Price 60 Days": "Цена 60 дней",
+        "Price 90 Days": "Цена 90 дней",
+        "Base Promo Group Period Discounts": "Скидки по периодам",
+        "Base Promo Group Period Discounts Enabled": "Скидки по периодам",
+        "Base Subscription Price": "Базовая цена",
+        "Default Device Limit": "Лимит устройств",
+        "Default Traffic Limit Gb": "Лимит трафика (ГБ)",
+        "Devices Selection Disabled Amount": "Устройств без выбора",
+        "Devices Selection Enabled": "Выбор устройств",
+        "Max Devices Limit": "Макс. устройств",
+        "Price Per Device": "Цена за устройство",
+        "Sales Mode": "Режим продаж",
+        "Available Renewal Periods": "Периоды продления",
+        "Available Subscription Periods": "Периоды подписки",
+        "Default Traffic Reset Strategy": "Стратегия сброса",
+        "Fixed Traffic Limit Gb": "Фикс. лимит (ГБ)",
+        "Reset Traffic On Payment": "Сброс при оплате",
+        "Traffic Check Batch Size": "Размер пакета",
+        "Traffic Check Concurrency": "Параллелизм",
+        "Traffic Daily Check Enabled": "Ежедневная проверка",
+        "Traffic Daily Check Time": "Время проверки",
+        "Traffic Daily Threshold Gb": "Порог в день (ГБ)",
+        "Traffic Excluded User Uuids": "Исключённые UUID",
+        "Traffic Fast Check Enabled": "Быстрая проверка",
+        "Traffic Fast Check Interval Minutes": "Интервал (мин)",
+        "Traffic Fast Check Threshold Gb": "Порог (ГБ)",
+        "Traffic Ignored Nodes": "Игнор. ноды",
+        "Traffic Notification Cooldown Minutes": "Кулдаун уведомлений",
+        "Traffic Reset Base Price": "Цена сброса",
+        "Traffic Reset Price Mode": "Режим цены сброса",
+        "Traffic Selection Mode": "Режим выбора",
+        "Traffic Threshold Gb Per Day": "Порог в день (ГБ)",
+        "Traffic Topup Enabled": "Докупка трафика",
+        "Traffic Topup Packages Config": "Конфиг докупки",
+        "Price Traffic 1000gb": "Цена 1000 ГБ",
+        "Price Traffic 100gb": "Цена 100 ГБ",
+        "Price Traffic 10gb": "Цена 10 ГБ",
+        "Price Traffic 250gb": "Цена 250 ГБ",
+        "Price Traffic 25gb": "Цена 25 ГБ",
+        "Price Traffic 500gb": "Цена 500 ГБ",
+        "Price Traffic 50gb": "Цена 50 ГБ",
+        "Price Traffic 5gb": "Цена 5 ГБ",
+        "Price Traffic Unlimited": "Цена безлимита",
+        "Traffic Packages Config": "Конфиг пакетов",
+        "Autopay Warning Days": "Предупреждение (дни)",
+        "Default Autopay Days Before": "Дней до автоплатежа",
+        "Default Autopay Enabled": "Автоплатёж по умолчанию",
+        "Min Balance For Autopay Kopeks": "Мин. баланс (коп.)"
       },
       "categories": {
         "PAYMENT": "Платежи",

src/pages/AdminSettings.tsx

@@ -38,12 +38,6 @@ const ChevronDownIcon = () => (
   </svg>
 )
 
-const ChevronRightIcon = () => (
-  <svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
-    <path strokeLinecap="round" strokeLinejoin="round" d="M8.25 4.5l7.5 7.5-7.5 7.5" />
-  </svg>
-)
-
 const UploadIcon = () => (
   <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
     <path strokeLinecap="round" strokeLinejoin="round" d="M3 16.5v2.25A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75V16.5m-13.5-9L12 3m0 0l4.5 4.5M12 3v13.5" />
@@ -196,7 +190,6 @@ export default function AdminSettings() {
 
   // State
   const [activeSection, setActiveSection] = useState('branding')
-  const [activeSubCategory, setActiveSubCategory] = useState<string | null>(null)
   const [searchQuery, setSearchQuery] = useState('')
   const [editingName, setEditingName] = useState(false)
   const [newName, setNewName] = useState('')
@@ -368,30 +361,20 @@ export default function AdminSettings() {
     }))
   }, [currentMenuItem, allSettings, t])
 
-  // Filter settings for current view
+  // Filter settings for search
   const filteredSettings = useMemo(() => {
-    if (!allSettings || !Array.isArray(allSettings)) return []
+    if (!allSettings || !Array.isArray(allSettings) || !searchQuery) return []
 
-    let settings: SettingDefinition[] = []
-
-    if (activeSubCategory) {
-      settings = allSettings.filter((s: SettingDefinition) => s.category.key === activeSubCategory)
-    } else if (currentMenuItem?.categories) {
-      settings = allSettings.filter((s: SettingDefinition) =>
-        currentMenuItem.categories!.includes(s.category.key)
-      )
-    }
-
-    if (searchQuery) {
     const q = searchQuery.toLowerCase()
-      settings = settings.filter((s: SettingDefinition) =>
+    let settings = allSettings.filter((s: SettingDefinition) =>
+      currentMenuItem?.categories?.includes(s.category.key)
+    )
+
+    return settings.filter((s: SettingDefinition) =>
       s.key.toLowerCase().includes(q) ||
       s.name?.toLowerCase().includes(q)
     )
-    }
-
-    return settings
-  }, [allSettings, activeSection, activeSubCategory, currentMenuItem, searchQuery])
+  }, [allSettings, currentMenuItem, searchQuery])
 
   // Favorite settings
   const favoriteSettings = useMemo(() => {
@@ -856,39 +839,11 @@ export default function AdminSettings() {
     </div>
   )
 
-  const renderSettingsContent = () => (
+  const renderSettingsContent = () => {
+    // If searching, show flat list
+    if (searchQuery) {
+      return (
         <div className="space-y-4">
-      {/* Sub-categories navigation */}
-      {currentCategories.length > 1 && !activeSubCategory && (
-        <div className="grid grid-cols-2 sm:grid-cols-3 lg:grid-cols-4 gap-3 mb-6">
-          {currentCategories.map((cat) => (
-            <button
-              key={cat.key}
-              onClick={() => setActiveSubCategory(cat.key)}
-              className="p-4 rounded-xl bg-dark-800/50 border border-dark-700/50 hover:border-dark-600 hover:bg-dark-800/70 transition-all text-left"
-            >
-              <div className="flex items-center justify-between">
-                <span className="font-medium text-dark-200 truncate">{cat.label}</span>
-                <ChevronRightIcon />
-              </div>
-              <span className="text-sm text-dark-500">{cat.settings.length} {t('admin.settings.settingsCount')}</span>
-            </button>
-          ))}
-        </div>
-      )}
-
-      {/* Back button if in sub-category */}
-      {activeSubCategory && (
-        <button
-          onClick={() => setActiveSubCategory(null)}
-          className="flex items-center gap-2 text-dark-400 hover:text-dark-200 transition-colors mb-4"
-        >
-          <BackIcon />
-          <span>{t('common.back')}</span>
-        </button>
-      )}
-
-      {/* Settings grid/list */}
           {filteredSettings.length === 0 ? (
             <div className="p-12 rounded-2xl bg-dark-800/30 border border-dark-700/30 text-center">
               <p className="text-dark-400">{t('admin.settings.noSettings')}</p>
@@ -900,6 +855,54 @@ export default function AdminSettings() {
           )}
         </div>
       )
+    }
+
+    // Show accordion for subcategories
+    return (
+      <div className="space-y-3">
+        {currentCategories.map((cat) => {
+          const isExpanded = expandedSections.has(cat.key)
+          return (
+            <div
+              key={cat.key}
+              className="rounded-2xl bg-dark-800/30 border border-dark-700/30 overflow-hidden"
+            >
+              {/* Accordion header */}
+              <button
+                onClick={() => toggleSection(cat.key)}
+                className="w-full flex items-center justify-between p-4 hover:bg-dark-800/50 transition-colors"
+              >
+                <div className="flex items-center gap-3">
+                  <span className="font-medium text-dark-100">{cat.label}</span>
+                  <span className="px-2 py-0.5 text-xs rounded-full bg-dark-700 text-dark-400">
+                    {cat.settings.length}
+                  </span>
+                </div>
+                <div className={`transition-transform duration-200 text-dark-400 ${isExpanded ? 'rotate-180' : ''}`}>
+                  <ChevronDownIcon />
+                </div>
+              </button>
+
+              {/* Accordion content */}
+              {isExpanded && (
+                <div className="p-4 pt-0 border-t border-dark-700/30">
+                  <div className="grid grid-cols-1 lg:grid-cols-2 xl:grid-cols-3 gap-4 pt-4">
+                    {cat.settings.map(renderSettingRow)}
+                  </div>
+                </div>
+              )}
+            </div>
+          )
+        })}
+
+        {currentCategories.length === 0 && (
+          <div className="p-12 rounded-2xl bg-dark-800/30 border border-dark-700/30 text-center">
+            <p className="text-dark-400">{t('admin.settings.noSettings')}</p>
+          </div>
+        )}
+      </div>
+    )
+  }
 
   // ============ RENDER ============
   return (
@@ -949,7 +952,6 @@ export default function AdminSettings() {
                     key={item.id}
                     onClick={() => {
                       setActiveSection(item.id)
-                      setActiveSubCategory(null)
                       setMobileMenuOpen(false)
                     }}
                     className={`w-full flex items-center gap-3 px-3 py-2.5 rounded-xl transition-all ${
@@ -988,9 +990,6 @@ export default function AdminSettings() {
 
             <h2 className="text-lg sm:text-xl font-semibold text-dark-100 truncate">
               {t(`admin.settings.${activeSection}`)}
-              {activeSubCategory && (
-                <span className="text-dark-400 font-normal text-sm sm:text-base"> / {t(`admin.settings.categories.${activeSubCategory}`, activeSubCategory)}</span>
-              )}
             </h2>
 
             <div className="flex-1" />