perf: optimize polling, stats cache, and frontend chunk splitting

app-frontend/src/pages/AccountsPage.vue

@@ -532,6 +532,17 @@ function bindSocket() {
 
 let unbindSocket = null
 let statsTimer = null
+let kdocsStatusTimer = null
+
+const STATS_POLL_ACTIVE_MS = 10_000
+const STATS_POLL_HIDDEN_MS = 30_000
+const KDOCS_STATUS_POLL_ACTIVE_MS = 60_000
+const KDOCS_STATUS_POLL_HIDDEN_MS = 180_000
+
+function isPageHidden() {
+  if (typeof document === 'undefined') return false
+  return document.visibilityState === 'hidden'
+}
 
 const shouldPollStats = computed(() => {
   // 仅在“真正执行中”才轮询（排队中不轮询，避免空转导致页面闪烁）
@@ -543,15 +554,27 @@ const shouldPollStats = computed(() => {
   })
 })
 
+function currentStatsPollDelay() {
+  return isPageHidden() ? STATS_POLL_HIDDEN_MS : STATS_POLL_ACTIVE_MS
+}
+
 function stopStatsPolling() {
   if (!statsTimer) return
-  window.clearInterval(statsTimer)
+  window.clearTimeout(statsTimer)
   statsTimer = null
 }
 
+function scheduleStatsPolling() {
+  if (statsTimer || !shouldPollStats.value) return
+  statsTimer = window.setTimeout(async () => {
+    statsTimer = null
+    await refreshStats({ silent: true }).catch(() => {})
+    scheduleStatsPolling()
+  }, currentStatsPollDelay())
+}
+
 function startStatsPolling() {
-  if (statsTimer) return
-  statsTimer = window.setInterval(() => refreshStats({ silent: true }), 10_000)
+  scheduleStatsPolling()
 }
 
 function syncStatsPolling(prevRunning = null) {
@@ -564,11 +587,37 @@ function syncStatsPolling(prevRunning = null) {
   else stopStatsPolling()
 }
 
-watch(shouldPollStats, (running, prevRunning) => {
+watch(shouldPollStats, (_running, prevRunning) => {
   syncStatsPolling(prevRunning)
 })
 
-let kdocsStatusTimer = null
+function currentKdocsStatusPollDelay() {
+  return isPageHidden() ? KDOCS_STATUS_POLL_HIDDEN_MS : KDOCS_STATUS_POLL_ACTIVE_MS
+}
+
+function stopKdocsStatusPolling() {
+  if (!kdocsStatusTimer) return
+  window.clearTimeout(kdocsStatusTimer)
+  kdocsStatusTimer = null
+}
+
+function scheduleKdocsStatusPolling() {
+  if (kdocsStatusTimer) return
+  kdocsStatusTimer = window.setTimeout(async () => {
+    kdocsStatusTimer = null
+    await loadKdocsStatus().catch(() => {})
+    scheduleKdocsStatusPolling()
+  }, currentKdocsStatusPollDelay())
+}
+
+function restartTimedPollingOnVisibilityChange() {
+  if (shouldPollStats.value) {
+    stopStatsPolling()
+    startStatsPolling()
+  }
+  stopKdocsStatusPolling()
+  scheduleKdocsStatusPolling()
+}
 
 onMounted(async () => {
   if (!userStore.vipInfo) {
@@ -583,16 +632,17 @@ onMounted(async () => {
   await loadKdocsSettings()
   await loadKdocsStatus()
   await refreshStats()
-  syncStatsPolling()
 
-  // 每60秒刷新 KDocs 状态
-  kdocsStatusTimer = window.setInterval(() => loadKdocsStatus(), 60_000)
+  syncStatsPolling()
+  scheduleKdocsStatusPolling()
+  window.addEventListener('visibilitychange', restartTimedPollingOnVisibilityChange)
 })
 
 onBeforeUnmount(() => {
   if (unbindSocket) unbindSocket()
   stopStatsPolling()
-  if (kdocsStatusTimer) window.clearInterval(kdocsStatusTimer)
+  stopKdocsStatusPolling()
+  window.removeEventListener('visibilitychange', restartTimedPollingOnVisibilityChange)
 })
 </script>