feat(frontend): finish backlog UX for audit, dashboard, wizard

Wire sessions audit to paged connection-logs with filters/export,
drop connection-count from log retention, add dashboard quick cards,
and group tunnel wizard protocols by scene.

frontend/src/locales/en-US.json

@@ -114,7 +114,13 @@
     "fixSuccess": "Fixed: {items}",
     "fixFailed": "Fix failed: {items}",
     "fixNeedRoot": "Root privileges required to modify system config",
-    "fixNothing": "Nothing to auto-fix"
+    "fixNothing": "Nothing to auto-fix",
+    "quickErrorTunnels": "Unhealthy tunnels",
+    "quickErrorHint": "Tunnels in error state",
+    "quickOnline": "Online sessions",
+    "quickOnlineHint": "Currently connected users",
+    "quickAlerts": "Open alerts",
+    "quickAlertsHint": "Traffic and quota alerts"
   },
   "tunnels": {
     "searchPlaceholder": "Search by name",
@@ -356,7 +362,10 @@
     "installSuccess": "{protocol} {version} installed successfully {method}",
     "methodPackageManager": "(Package Manager)",
     "methodDownload": "(One-Click Install)",
-    "installFailed": "Failed to install {protocol}"
+    "installFailed": "Failed to install {protocol}",
+    "groupEmployee": "Employee access",
+    "groupSite": "Site interconnect",
+    "groupPenetrate": "Intranet penetration"
   },
   "users": {
     "title": "Admins",
@@ -581,7 +590,7 @@
     "cleanupHint": "Delete log data older than specified days",
     "cleanupPrompt": "Keep logs from the last how many days?",
     "cleanupInputError": "Please enter a positive integer",
-    "cleanupDone": "Cleanup done: {audit} audit, {conn} connection, {session} session records deleted",
+    "cleanupDone": "Cleanup done: {audit} audit logs, {session} session records",
     "loadFailed": "Failed to load logs",
     "noAlerts": "No traffic alerts"
   },

frontend/src/locales/zh-CN.json

@@ -114,7 +114,13 @@
     "fixSuccess": "已修复：{items}",
     "fixFailed": "修复失败：{items}",
     "fixNeedRoot": "需要以 root 运行才能修改系统配置",
-    "fixNothing": "当前没有可自动修复的项"
+    "fixNothing": "当前没有可自动修复的项",
+    "quickErrorTunnels": "异常专线",
+    "quickErrorHint": "状态为错误的专线",
+    "quickOnline": "在线会话",
+    "quickOnlineHint": "当前在线拨号用户",
+    "quickAlerts": "待处理告警",
+    "quickAlertsHint": "流量异常与配额告警"
   },
   "tunnels": {
     "searchPlaceholder": "搜索名称",
@@ -356,7 +362,10 @@
     "installSuccess": "{protocol} {version} 安装成功 {method}",
     "methodPackageManager": "(包管理器安装)",
     "methodDownload": "(一键安装)",
-    "installFailed": "{protocol} 安装失败"
+    "installFailed": "{protocol} 安装失败",
+    "groupEmployee": "员工接入",
+    "groupSite": "站点对接",
+    "groupPenetrate": "内网穿透"
   },
   "users": {
     "title": "管理员",
@@ -581,7 +590,7 @@
     "cleanupHint": "删除指定天数之前的日志数据",
     "cleanupPrompt": "保留最近多少天的日志？",
     "cleanupInputError": "请输入正整数",
-    "cleanupDone": "清理完成：审计 {audit} 条、连接 {conn} 条、会话 {session} 条",
+    "cleanupDone": "清理完成：操作审计 {audit} 条、会话记录 {session} 条",
     "loadFailed": "加载日志失败",
     "noAlerts": "暂无流量告警"
   },