优化首页返回定位与发布在线时间表单

移动端首页用列表缓存和内部滚动恢复浏览位置；发布页在线时间改为全天+起止时间单行布局。

frontend/src/App.vue

@@ -8,9 +8,6 @@ import InAppBrowserPrompt from './components/InAppBrowserPrompt.vue'
 import AdminLayout from './layouts/AdminLayout.vue'
 import AppLayout from './layouts/AppLayout.vue'
 
-/** 移动端从详情返回时保留列表状态与滚动位置 */
-const mobileKeepAliveIncludes = ['MobileHomeView']
-
 const route = useRoute()
 const layout = computed(() => {
   if (route.path === '/m' || route.path.startsWith('/m/')) {
@@ -26,11 +23,7 @@ const layout = computed(() => {
     <AdminLayout v-if="layout === 'admin'">
       <RouterView />
     </AdminLayout>
-    <RouterView v-else-if="layout === 'blank'" v-slot="{ Component }">
-      <KeepAlive :include="mobileKeepAliveIncludes" :max="5">
-        <component :is="Component" />
-      </KeepAlive>
-    </RouterView>
+    <RouterView v-else-if="layout === 'blank'" />
     <AppLayout v-else>
       <RouterView />
     </AppLayout>