feat: add settings page with navigation and access control updates

web/src/composables/useNavigation.js

@@ -3,7 +3,7 @@ import { useRoute, useRouter } from 'vue-router'
 
 import { icons } from '../data/icons.js'
 
-export const appViews = ['overview', 'workbench', 'requests', 'approval', 'chat', 'policies', 'audit', 'employees']
+export const appViews = ['overview', 'workbench', 'requests', 'approval', 'chat', 'policies', 'audit', 'employees', 'settings']
 
 export const navItems = [
   {
@@ -69,6 +69,14 @@ export const navItems = [
     icon: icons.users,
     title: '员工与组织管理',
     desc: '维护员工账号、组织结构与角色权限。'
+  },
+  {
+    id: 'settings',
+    label: '系统设置',
+    navHint: '维护企业品牌、管理员安全与系统配置',
+    icon: icons.settings,
+    title: '系统设置中心',
+    desc: '集中配置公司名称、管理员账号安全、模型接入、日志策略与邮箱通知。'
   }
 ]
 
@@ -80,7 +88,8 @@ const viewRouteNames = {
   chat: 'app-chat',
   policies: 'app-policies',
   audit: 'app-audit',
-  employees: 'app-employees'
+  employees: 'app-employees',
+  settings: 'app-settings'
 }
 
 export function useNavigation() {