feat: 更新应用配置，添加数字金融营销平台支持

src/composables/useAppConfig.ts

 import { urls } from '@/utils/env'
 import { useUserStore } from '@/stores/user'
 
-const appConfigList = [
+export function useAppConfig() {
+  const appConfigList = [
     {
       system: 'dml',
       title: '数字技能实践教学平台',
@@ -168,12 +169,10 @@ const appConfigList = [
       homeUrl: '/student/lab/competition',
       liveMonitor: true,
     },
-]
-
-// 长春金专大赛支持
-const digitalFinanceMarketingMobiles = new Set(['15526552767', '18345542466', '14743833355', '18946639603'])
+  ]
 
-export function useAppConfig() {
+  // 长春金专大赛支持
+  const digitalFinanceMarketingMobiles = new Set(['15526552767', '18345542466', '14743833355', '18946639603'])
   // 如果定义了 VITE_SYSTEM，直接用；否则通过域名 hosts 匹配
   const found = import.meta.env.VITE_SYSTEM
     ? appConfigList.find((item) => item.system === import.meta.env.VITE_SYSTEM) || appConfigList[0]