refactor(channel-status): drop breadcrumb + subtitle from MonitorHero

The "CHANNEL · STATUS" breadcrumb and the zh/en subtitles above the
window-picker were redundant with the existing "渠道状态" page title
shown in the layout header. Remove the left column and right-align the
7d/15d/30d tabs + overall chip.

Also drop the now-unreferenced channelStatus.hero.* i18n keys from both
locales (grep confirms no remaining usage).

chore: bump version to 0.1.114.31

frontend/src/components/user/monitor/MonitorHero.vue

 <template>
   <section class="pt-6 pb-6 md:pb-8">
-    <div class="text-xs font-medium tracking-widest uppercase text-gray-400 dark:text-gray-500 mb-4">
-      {{ t('channelStatus.hero.breadcrumb') }}
-    </div>
-    <div class="flex flex-col gap-6 md:flex-row md:items-end md:justify-between">
-      <div class="min-w-0">
-        <p class="text-sm md:text-base text-gray-500 dark:text-gray-400 max-w-xl">
-          {{ t('channelStatus.hero.subtitleZh') }}
-        </p>
-        <p class="mt-1 text-xs md:text-sm italic opacity-80 text-gray-500 dark:text-gray-400 max-w-xl">
-          {{ t('channelStatus.hero.subtitleEn') }}
-        </p>
-      </div>
-
+    <div class="flex flex-col gap-6 md:flex-row md:items-end md:justify-end">
       <div class="flex flex-col items-start md:items-end gap-2.5">
         <div
           role="tablist"

frontend/src/i18n/locales/en.ts

@@ -895,11 +895,6 @@ export default {
     detailLoadError: 'Failed to load channel detail',
     detailTitle: 'Channel Detail',
     closeDetail: 'Close',
-    hero: {
-      breadcrumb: 'CHANNEL · STATUS',
-      subtitleZh: 'Real-time tracking of availability, latency and status for leading AI endpoints.',
-      subtitleEn: 'Advanced performance metrics for next-gen intelligence.'
-    },
     windowTab: {
       '7d': '7 days',
       '15d': '15 days',

frontend/src/i18n/locales/zh.ts

@@ -899,11 +899,6 @@ export default {
     detailLoadError: '加载渠道详情失败',
     detailTitle: '渠道详情',
     closeDetail: '关闭',
-    hero: {
-      breadcrumb: '渠道 · 状态',
-      subtitleZh: '实时追踪各大 AI 模型对话接口的可用性、延迟与官方服务状态。',
-      subtitleEn: 'Advanced performance metrics for next-gen intelligence.'
-    },
     windowTab: {
       '7d': '7 天',
       '15d': '15 天',