feat(ui): refresh dashboard and paper boat branding

frontend/src/components/layout/navItems.ts

@@ -34,6 +34,8 @@ export interface NavItem {
 
 export interface NavGroup {
   section: string
+  /** Latin subtitle shown beside the Chinese section heading */
+  en?: string
   items: NavItem[]
 }
 
@@ -54,20 +56,9 @@ export function useNavItems() {
   const navGroups = computed<NavGroup[]>(() =>
     [
       {
-        section: '主菜单',
+        section: '接待',
+        en: 'Reception',
         items: [
-          {
-            to: '/ai-agents',
-            icon: 'agents',
-            label: 'AI 客服',
-            show: canAccessPath('/ai-agents'),
-          },
-          {
-            to: '/human-agents',
-            icon: 'humans',
-            label: '人工客服',
-            show: canAccessPath('/human-agents'),
-          },
           {
             to: '/conversations',
             icon: 'inbox',
@@ -86,6 +77,18 @@ export function useNavItems() {
             label: '联系人',
             show: canAccessPath('/people'),
           },
+        ],
+      },
+      {
+        section: '智能',
+        en: 'Intelligence',
+        items: [
+          {
+            to: '/ai-agents',
+            icon: 'agents',
+            label: 'AI 客服',
+            show: canAccessPath('/ai-agents'),
+          },
           {
             to: '/knowledge',
             icon: 'knowledge',
@@ -98,6 +101,18 @@ export function useNavItems() {
             label: '帮助中心',
             show: canAccessPath('/faq'),
           },
+        ],
+      },
+      {
+        section: '团队',
+        en: 'Team',
+        items: [
+          {
+            to: '/human-agents',
+            icon: 'humans',
+            label: '人工客服',
+            show: canAccessPath('/human-agents'),
+          },
           {
             to: '/analytics',
             icon: 'analytics',
@@ -107,7 +122,8 @@ export function useNavItems() {
         ],
       },
       {
-        section: '设置',
+        section: '配置',
+        en: 'Settings',
         items: [
           {
             to: '/settings/organization',