feat: redesign admin settings with tree navigation and compact layout

- Replace flat sidebar with collapsible tree groups (7 groups, 52 sub-items)
- Map all 61 backend category keys to sidebar navigation
- Add QuickToggles panel for boolean settings
- Replace card-style SettingRow with compact SettingsTableRow
- Add breadcrumb navigation for tree sub-items
- Add source badges (modified/DB/ENV) on settings
- Implement two-level mobile navigation with group chips
- Add i18n translations for all new keys (en, ru, zh, fa)

src/locales/en.json

@@ -1836,8 +1836,11 @@
       "title": "System Settings",
       "allCategories": "All categories",
       "noSettings": "No settings found",
+      "quickToggles": "Quick Toggles",
       "modified": "Modified",
       "readOnly": "Read only",
+      "badgeDb": "DB",
+      "badgeEnv": "ENV",
       "reset": "Reset",
       "categoriesCount": "categories",
       "settingsCount": "settings",
@@ -1910,6 +1913,84 @@
       "quickPresets": "Quick presets",
       "resetAllColors": "Reset all colors",
       "statusColors": "Status colors",
+      "favorites": "Favorites",
+      "branding": "Branding",
+      "theme": "Theme",
+      "payments": "Payments",
+      "subscriptions": "Subscriptions",
+      "interface": "Interface",
+      "notifications": "Notifications",
+      "database": "Database",
+      "system": "System",
+      "users": "Users",
+      "customization": "Customization",
+      "settingsLabel": "Settings",
+      "backToAdmin": "Back to admin",
+      "totalCount": "{{count}} total",
+      "modifiedCount": "{{count}} modified",
+      "groups": {
+        "payments": "Payments",
+        "subscriptions": "Subscriptions",
+        "interface": "Interface",
+        "users": "Users",
+        "notifications": "Notifications",
+        "database": "Database",
+        "system": "System"
+      },
+      "tree": {
+        "payments_general": "General",
+        "payments_stars": "Telegram Stars",
+        "payments_yookassa": "YooKassa",
+        "payments_cryptobot": "CryptoBot",
+        "payments_cloudpayments": "CloudPayments",
+        "payments_freekassa": "FreeKassa",
+        "payments_kassa_ai": "Kassa AI",
+        "payments_platega": "Platega",
+        "payments_pal24": "PAL24",
+        "payments_heleket": "Heleket",
+        "payments_mulenpay": "MulenPay",
+        "payments_tribute": "Tribute",
+        "payments_wata": "Wata",
+        "payments_riopay": "RioPay",
+        "payments_severpay": "SeverPay",
+        "subs_core": "Core",
+        "subs_trial": "Trial",
+        "subs_pricing": "Pricing",
+        "subs_periods": "Periods",
+        "subs_traffic": "Traffic",
+        "subs_simple": "Simple subscription",
+        "subs_autopay": "Auto-pay",
+        "iface_general": "General",
+        "iface_connect": "Connect button",
+        "iface_miniapp": "MiniApp",
+        "iface_happ": "HAPP",
+        "iface_widget": "Login Widget",
+        "iface_oidc": "OIDC",
+        "iface_skip": "Skip steps",
+        "iface_additional": "Additional",
+        "users_support": "Support",
+        "users_referral": "Referral",
+        "users_channel": "Channel",
+        "users_localization": "Localization",
+        "users_moderation": "Moderation",
+        "notif_user": "User notifications",
+        "notif_admin": "Admin notifications",
+        "notif_reports": "Reports",
+        "db_general": "General",
+        "db_postgres": "PostgreSQL",
+        "db_sqlite": "SQLite",
+        "db_redis": "Redis",
+        "sys_core": "Core & Debug",
+        "sys_remnawave": "RemnaWave",
+        "sys_webapi": "Web API",
+        "sys_webhook": "Webhook",
+        "sys_server": "Server status",
+        "sys_monitoring": "Monitoring",
+        "sys_maintenance": "Maintenance",
+        "sys_backup": "Backup",
+        "sys_version": "Version",
+        "sys_logging": "Logging"
+      },
       "categories": {
         "TELEGRAM_WIDGET": "Telegram Login Widget",
         "TELEGRAM_OIDC": "Telegram Login (OIDC)"

src/locales/fa.json

@@ -1497,6 +1497,7 @@
       "title": "تنظیمات سیستم",
       "allCategories": "همه دسته‌ها",
       "noSettings": "تنظیماتی یافت نشد",
+      "quickToggles": "تغییر سریع",
       "modified": "تغییر یافته",
       "readOnly": "فقط خواندنی",
       "reset": "بازنشانی",
@@ -1571,6 +1572,86 @@
       "quickPresets": "پیش‌تنظیم‌های سریع",
       "resetAllColors": "بازنشانی همه رنگ‌ها",
       "statusColors": "رنگ‌های وضعیت",
+      "favorites": "علاقه‌مندی‌ها",
+      "branding": "برندسازی",
+      "theme": "پوسته",
+      "payments": "پرداخت‌ها",
+      "subscriptions": "اشتراک‌ها",
+      "interface": "رابط کاربری",
+      "notifications": "اعلان‌ها",
+      "database": "پایگاه داده",
+      "system": "سیستم",
+      "users": "کاربران",
+      "customization": "سفارشی‌سازی",
+      "settingsLabel": "تنظیمات",
+      "backToAdmin": "بازگشت به مدیریت",
+      "totalCount": "{{count}} مورد",
+      "modifiedCount": "{{count}} تغییر یافته",
+      "badgeDb": "پایگاه داده",
+      "badgeEnv": "متغیر محیطی",
+      "groups": {
+        "payments": "پرداخت‌ها",
+        "subscriptions": "اشتراک‌ها",
+        "interface": "رابط کاربری",
+        "users": "کاربران",
+        "notifications": "اعلان‌ها",
+        "database": "پایگاه داده",
+        "system": "سیستم"
+      },
+      "tree": {
+        "payments_general": "عمومی",
+        "payments_stars": "Telegram Stars",
+        "payments_yookassa": "YooKassa",
+        "payments_cryptobot": "CryptoBot",
+        "payments_cloudpayments": "CloudPayments",
+        "payments_freekassa": "FreeKassa",
+        "payments_kassa_ai": "Kassa AI",
+        "payments_platega": "Platega",
+        "payments_pal24": "PAL24",
+        "payments_heleket": "Heleket",
+        "payments_mulenpay": "MulenPay",
+        "payments_tribute": "Tribute",
+        "payments_wata": "Wata",
+        "payments_riopay": "RioPay",
+        "payments_severpay": "SeverPay",
+        "subs_core": "هسته",
+        "subs_trial": "آزمایشی",
+        "subs_pricing": "قیمت‌گذاری",
+        "subs_periods": "دوره‌ها",
+        "subs_traffic": "ترافیک",
+        "subs_simple": "اشتراک ساده",
+        "subs_autopay": "پرداخت خودکار",
+        "iface_general": "عمومی",
+        "iface_connect": "دکمه اتصال",
+        "iface_miniapp": "MiniApp",
+        "iface_happ": "HAPP",
+        "iface_widget": "ویجت ورود",
+        "iface_oidc": "OIDC",
+        "iface_skip": "رد کردن مراحل",
+        "iface_additional": "اضافی",
+        "users_support": "پشتیبانی",
+        "users_referral": "معرفی",
+        "users_channel": "کانال",
+        "users_localization": "بومی‌سازی",
+        "users_moderation": "مدیریت محتوا",
+        "notif_user": "اعلان‌های کاربر",
+        "notif_admin": "اعلان‌های مدیر",
+        "notif_reports": "گزارش‌ها",
+        "db_general": "عمومی",
+        "db_postgres": "PostgreSQL",
+        "db_sqlite": "SQLite",
+        "db_redis": "Redis",
+        "sys_core": "هسته و اشکال‌زدایی",
+        "sys_remnawave": "RemnaWave",
+        "sys_webapi": "Web API",
+        "sys_webhook": "Webhook",
+        "sys_server": "وضعیت سرور",
+        "sys_monitoring": "نظارت",
+        "sys_maintenance": "نگهداری",
+        "sys_backup": "پشتیبان‌گیری",
+        "sys_version": "نسخه",
+        "sys_logging": "لاگ‌ها"
+      },
       "categories": {
         "TELEGRAM_WIDGET": "Telegram Login Widget",
         "TELEGRAM_OIDC": "Telegram Login (OIDC)"

src/locales/ru.json

@@ -1861,8 +1861,11 @@
       "title": "Настройки системы",
       "allCategories": "Все категории",
       "noSettings": "Настройки не найдены",
+      "quickToggles": "Быстрые переключатели",
       "modified": "Изменено",
       "readOnly": "Только чтение",
+      "badgeDb": "БД",
+      "badgeEnv": "ENV",
       "reset": "Сбросить",
       "categoriesCount": "категорий",
       "settingsCount": "настроек",
@@ -1936,6 +1939,74 @@
       "googleLabelPlaceholder": "Например: AbCdEfGhIjKl",
       "googleLabelHint": "Метка конверсии для отслеживания событий",
       "analyticsHint": "Счётчики автоматически встраиваются на все страницы кабинета. После сохранения ID скрипты подключаются при следующей загрузке страницы. Для удаления счётчика очистите поле и сохраните.",
+      "customization": "Кастомизация",
+      "settingsLabel": "Настройки",
+      "backToAdmin": "Назад к админке",
+      "totalCount": "{{count}} всего",
+      "modifiedCount": "{{count}} изменено",
+      "groups": {
+        "payments": "Платежи",
+        "subscriptions": "Подписки",
+        "interface": "Интерфейс",
+        "users": "Пользователи",
+        "notifications": "Уведомления",
+        "database": "База данных",
+        "system": "Система"
+      },
+      "tree": {
+        "payments_general": "Основные",
+        "payments_stars": "Telegram Stars",
+        "payments_yookassa": "YooKassa",
+        "payments_cryptobot": "CryptoBot",
+        "payments_cloudpayments": "CloudPayments",
+        "payments_freekassa": "FreeKassa",
+        "payments_kassa_ai": "Kassa AI",
+        "payments_platega": "Platega",
+        "payments_pal24": "PAL24",
+        "payments_heleket": "Heleket",
+        "payments_mulenpay": "MulenPay",
+        "payments_tribute": "Tribute",
+        "payments_wata": "Wata",
+        "payments_riopay": "RioPay",
+        "payments_severpay": "SeverPay",
+        "subs_core": "Основные",
+        "subs_trial": "Пробный период",
+        "subs_pricing": "Цены",
+        "subs_periods": "Периоды",
+        "subs_traffic": "Трафик",
+        "subs_simple": "Простая подписка",
+        "subs_autopay": "Автоплатёж",
+        "iface_general": "Основные",
+        "iface_connect": "Кнопка подключения",
+        "iface_miniapp": "MiniApp",
+        "iface_happ": "HAPP",
+        "iface_widget": "Виджет входа",
+        "iface_oidc": "OIDC",
+        "iface_skip": "Пропуск шагов",
+        "iface_additional": "Дополнительно",
+        "users_support": "Поддержка",
+        "users_referral": "Реферальная система",
+        "users_channel": "Канал",
+        "users_localization": "Локализация",
+        "users_moderation": "Модерация",
+        "notif_user": "Уведомления пользователей",
+        "notif_admin": "Уведомления админов",
+        "notif_reports": "Отчёты",
+        "db_general": "Основные",
+        "db_postgres": "PostgreSQL",
+        "db_sqlite": "SQLite",
+        "db_redis": "Redis",
+        "sys_core": "Ядро и отладка",
+        "sys_remnawave": "RemnaWave",
+        "sys_webapi": "Web API",
+        "sys_webhook": "Webhook",
+        "sys_server": "Статус сервера",
+        "sys_monitoring": "Мониторинг",
+        "sys_maintenance": "Обслуживание",
+        "sys_backup": "Бэкап",
+        "sys_version": "Версия",
+        "sys_logging": "Логи"
+      },
       "presets": {
         "standard": "Стандарт",
         "ocean": "Океан",

src/locales/zh.json

@@ -1535,6 +1535,7 @@
       "title": "系统设置",
       "allCategories": "所有分类",
       "noSettings": "未找到设置",
+      "quickToggles": "快速开关",
       "modified": "已修改",
       "readOnly": "只读",
       "reset": "重置",
@@ -1609,6 +1610,86 @@
       "quickPresets": "快速预设",
       "resetAllColors": "重置所有颜色",
       "statusColors": "状态颜色",
+      "favorites": "收藏",
+      "branding": "品牌",
+      "theme": "主题",
+      "payments": "支付",
+      "subscriptions": "订阅",
+      "interface": "界面",
+      "notifications": "通知",
+      "database": "数据库",
+      "system": "系统",
+      "users": "用户",
+      "customization": "自定义",
+      "settingsLabel": "设置",
+      "backToAdmin": "返回管理面板",
+      "totalCount": "共 {{count}} 项",
+      "modifiedCount": "已修改 {{count}} 项",
+      "badgeDb": "数据库",
+      "badgeEnv": "环境变量",
+      "groups": {
+        "payments": "支付",
+        "subscriptions": "订阅",
+        "interface": "界面",
+        "users": "用户",
+        "notifications": "通知",
+        "database": "数据库",
+        "system": "系统"
+      },
+      "tree": {
+        "payments_general": "通用",
+        "payments_stars": "Telegram Stars",
+        "payments_yookassa": "YooKassa",
+        "payments_cryptobot": "CryptoBot",
+        "payments_cloudpayments": "CloudPayments",
+        "payments_freekassa": "FreeKassa",
+        "payments_kassa_ai": "Kassa AI",
+        "payments_platega": "Platega",
+        "payments_pal24": "PAL24",
+        "payments_heleket": "Heleket",
+        "payments_mulenpay": "MulenPay",
+        "payments_tribute": "Tribute",
+        "payments_wata": "Wata",
+        "payments_riopay": "RioPay",
+        "payments_severpay": "SeverPay",
+        "subs_core": "核心",
+        "subs_trial": "试用",
+        "subs_pricing": "定价",
+        "subs_periods": "周期",
+        "subs_traffic": "流量",
+        "subs_simple": "简单订阅",
+        "subs_autopay": "自动支付",
+        "iface_general": "通用",
+        "iface_connect": "连接按钮",
+        "iface_miniapp": "MiniApp",
+        "iface_happ": "HAPP",
+        "iface_widget": "登录小部件",
+        "iface_oidc": "OIDC",
+        "iface_skip": "跳过步骤",
+        "iface_additional": "附加",
+        "users_support": "支持",
+        "users_referral": "推荐",
+        "users_channel": "频道",
+        "users_localization": "本地化",
+        "users_moderation": "审核",
+        "notif_user": "用户通知",
+        "notif_admin": "管理员通知",
+        "notif_reports": "报告",
+        "db_general": "通用",
+        "db_postgres": "PostgreSQL",
+        "db_sqlite": "SQLite",
+        "db_redis": "Redis",
+        "sys_core": "核心与调试",
+        "sys_remnawave": "RemnaWave",
+        "sys_webapi": "Web API",
+        "sys_webhook": "Webhook",
+        "sys_server": "服务器状态",
+        "sys_monitoring": "监控",
+        "sys_maintenance": "维护",
+        "sys_backup": "备份",
+        "sys_version": "版本",
+        "sys_logging": "日志"
+      },
       "categories": {
         "TELEGRAM_WIDGET": "Telegram Login Widget",
         "TELEGRAM_OIDC": "Telegram Login (OIDC)"