refactor(web): compact system status into a single card alongside metrics

Replace the separate two-card row with a single compact 'System Status'
card placed as the 5th column in the metrics grid. Shows green/red dots
for Plugin Runtime and Box Runtime. Click to expand a popover with
connection details (backend, profile, sandbox count).

web/src/i18n/locales/en-US.ts

@@ -1253,6 +1253,7 @@ const enUS = {
       sessions: 'Sessions',
       feedback: 'User Feedback',
     },
+    systemStatus: 'System Status',
     pluginRuntime: 'Plugin Runtime',
     boxRuntime: 'Box Runtime',
     connected: 'Connected',

web/src/i18n/locales/es-ES.ts

@@ -1279,6 +1279,7 @@ const esES = {
       sessions: 'Sesiones',
       feedback: 'Comentarios de usuarios',
     },
+    systemStatus: 'Estado del sistema',
     pluginRuntime: 'Plugin Runtime',
     boxRuntime: 'Box Runtime',
     connected: 'Conectado',

web/src/i18n/locales/ja-JP.ts

@@ -1251,6 +1251,7 @@ const jaJP = {
       sessions: 'セッション',
       feedback: 'ユーザーフィードバック',
     },
+    systemStatus: 'システム状態',
     pluginRuntime: 'プラグインランタイム',
     boxRuntime: 'Box ランタイム',
     connected: '接続済み',

web/src/i18n/locales/ru-RU.ts

@@ -1253,6 +1253,7 @@ const ruRU = {
       sessions: 'Сессии',
       feedback: 'Отзывы пользователей',
     },
+    systemStatus: 'Состояние системы',
     pluginRuntime: 'Среда плагинов',
     boxRuntime: 'Среда Box',
     connected: 'Подключено',

web/src/i18n/locales/th-TH.ts

@@ -1226,6 +1226,7 @@ const thTH = {
       sessions: 'เซสชัน',
       feedback: 'ความคิดเห็นผู้ใช้',
     },
+    systemStatus: 'สถานะระบบ',
     pluginRuntime: 'Plugin Runtime',
     boxRuntime: 'Box Runtime',
     connected: 'เชื่อมต่อแล้ว',

web/src/i18n/locales/vi-VN.ts

@@ -1247,6 +1247,7 @@ const viVN = {
       sessions: 'Phiên',
       feedback: 'Phản hồi người dùng',
     },
+    systemStatus: 'Trạng thái hệ thống',
     pluginRuntime: 'Plugin Runtime',
     boxRuntime: 'Box Runtime',
     connected: 'Đã kết nối',

web/src/i18n/locales/zh-Hans.ts

@@ -1199,6 +1199,7 @@ const zhHans = {
       sessions: '会话记录',
       feedback: '用户反馈',
     },
+    systemStatus: '系统状态',
     pluginRuntime: '插件运行时',
     boxRuntime: 'Box 运行时',
     connected: '已连接',

web/src/i18n/locales/zh-Hant.ts

@@ -1192,6 +1192,7 @@ const zhHant = {
       sessions: '會話記錄',
       feedback: '使用者回饋',
     },
+    systemStatus: '系統狀態',
     pluginRuntime: '外掛執行時',
     boxRuntime: 'Box 執行時',
     connected: '已連線',