fix(monitor): remove UNAVAILABLE status, keep only OPERATIONAL/DEGRADED

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

@@ -67,7 +67,7 @@ import AutoRefreshButton from '@/components/common/AutoRefreshButton.vue'
 import { useChannelMonitorFormat } from '@/composables/useChannelMonitorFormat'
 
 export type MonitorWindow = '7d' | '15d' | '30d'
-export type OverallStatus = 'operational' | 'degraded' | 'unavailable'
+export type OverallStatus = 'operational' | 'degraded'
 
 const props = defineProps<{
   overallStatus: OverallStatus
@@ -106,10 +106,8 @@ const overallChipClass = computed(() => {
     case 'operational':
       return 'bg-emerald-100 text-emerald-700 dark:bg-emerald-500/15 dark:text-emerald-300'
     case 'degraded':
-      return 'bg-amber-100 text-amber-700 dark:bg-amber-500/15 dark:text-amber-300'
-    case 'unavailable':
     default:
-      return 'bg-red-100 text-red-700 dark:bg-red-500/15 dark:text-red-300'
+      return 'bg-amber-100 text-amber-700 dark:bg-amber-500/15 dark:text-amber-300'
   }
 })
 
@@ -118,10 +116,8 @@ const overallDotClass = computed(() => {
     case 'operational':
       return 'bg-emerald-500 animate-pulse'
     case 'degraded':
-      return 'bg-amber-500 animate-pulse'
-    case 'unavailable':
     default:
-      return 'bg-red-500 animate-pulse'
+      return 'bg-amber-500 animate-pulse'
   }
 })
 

frontend/src/views/user/ChannelStatusView.vue

@@ -75,16 +75,11 @@ const countdown = autoRefresh.countdown
 
 // ── Computed ──
 const overallStatus = computed<OverallStatus>(() => {
-  const total = items.value.length
-  if (total === 0) return 'operational'
-  let failCount = 0
-  let degradedCount = 0
+  if (items.value.length === 0) return 'operational'
   for (const it of items.value) {
-    if (it.primary_status === 'failed' || it.primary_status === 'error') failCount++
-    else if (it.primary_status !== STATUS_OPERATIONAL) degradedCount++
+    if (it.primary_status === 'failed' || it.primary_status === 'error') return 'degraded'
+    if (it.primary_status !== STATUS_OPERATIONAL) return 'degraded'
   }
-  if (failCount > total / 2) return 'unavailable'
-  if (failCount > 0 || degradedCount > 0) return 'degraded'
   return 'operational'
 })