feat: 添加5h窗口费用控制和会话数量限制

- 支持Anthropic OAuth/SetupToken账号的5h窗口费用阈值控制
- 支持账号级别的并发会话数量限制
- 使用Redis缓存窗口费用(30秒TTL)减少数据库压力
- 费用计算基于标准费用(不含账号倍率)

frontend/src/components/account/AccountCapacityCell.vue

@@ -0,0 +1,199 @@
+<template>
+  <div class="flex flex-col gap-1.5">
+    <!-- 并发槽位 -->
+    <div class="flex items-center gap-1.5">
+      <span
+        :class="[
+          'inline-flex items-center gap-1 rounded-md px-2 py-0.5 text-xs font-medium',
+          concurrencyClass
+        ]"
+      >
+        <svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+          <path stroke-linecap="round" stroke-linejoin="round" d="M3.75 6A2.25 2.25 0 016 3.75h2.25A2.25 2.25 0 0110.5 6v2.25a2.25 2.25 0 01-2.25 2.25H6a2.25 2.25 0 01-2.25-2.25V6zM3.75 15.75A2.25 2.25 0 016 13.5h2.25a2.25 2.25 0 012.25 2.25V18a2.25 2.25 0 01-2.25 2.25H6A2.25 2.25 0 013.75 18v-2.25zM13.5 6a2.25 2.25 0 012.25-2.25H18A2.25 2.25 0 0120.25 6v2.25A2.25 2.25 0 0118 10.5h-2.25a2.25 2.25 0 01-2.25-2.25V6zM13.5 15.75a2.25 2.25 0 012.25-2.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-2.25A2.25 2.25 0 0113.5 18v-2.25z" />
+        </svg>
+        <span class="font-mono">{{ currentConcurrency }}</span>
+        <span class="text-gray-400 dark:text-gray-500">/</span>
+        <span class="font-mono">{{ account.concurrency }}</span>
+      </span>
+    </div>
+
+    <!-- 5h窗口费用限制（仅 Anthropic OAuth/SetupToken 且启用时显示） -->
+    <div v-if="showWindowCost" class="flex items-center gap-1">
+      <span
+        :class="[
+          'inline-flex items-center gap-1 rounded-md px-1.5 py-0.5 text-[10px] font-medium',
+          windowCostClass
+        ]"
+        :title="windowCostTooltip"
+      >
+        <svg class="h-2.5 w-2.5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+          <path stroke-linecap="round" stroke-linejoin="round" d="M12 6v12m-3-2.818l.879.659c1.171.879 3.07.879 4.242 0 1.172-.879 1.172-2.303 0-3.182C13.536 12.219 12.768 12 12 12c-.725 0-1.45-.22-2.003-.659-1.106-.879-1.106-2.303 0-3.182s2.9-.879 4.006 0l.415.33M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+        </svg>
+        <span class="font-mono">${{ formatCost(currentWindowCost) }}</span>
+        <span class="text-gray-400 dark:text-gray-500">/</span>
+        <span class="font-mono">${{ formatCost(account.window_cost_limit) }}</span>
+      </span>
+    </div>
+
+    <!-- 会话数量限制（仅 Anthropic OAuth/SetupToken 且启用时显示） -->
+    <div v-if="showSessionLimit" class="flex items-center gap-1">
+      <span
+        :class="[
+          'inline-flex items-center gap-1 rounded-md px-1.5 py-0.5 text-[10px] font-medium',
+          sessionLimitClass
+        ]"
+        :title="sessionLimitTooltip"
+      >
+        <svg class="h-2.5 w-2.5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+          <path stroke-linecap="round" stroke-linejoin="round" d="M15 19.128a9.38 9.38 0 002.625.372 9.337 9.337 0 004.121-.952 4.125 4.125 0 00-7.533-2.493M15 19.128v-.003c0-1.113-.285-2.16-.786-3.07M15 19.128v.106A12.318 12.318 0 018.624 21c-2.331 0-4.512-.645-6.374-1.766l-.001-.109a6.375 6.375 0 0111.964-3.07M12 6.375a3.375 3.375 0 11-6.75 0 3.375 3.375 0 016.75 0zm8.25 2.25a2.625 2.625 0 11-5.25 0 2.625 2.625 0 015.25 0z" />
+        </svg>
+        <span class="font-mono">{{ activeSessions }}</span>
+        <span class="text-gray-400 dark:text-gray-500">/</span>
+        <span class="font-mono">{{ account.max_sessions }}</span>
+      </span>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import type { Account } from '@/types'
+
+const props = defineProps<{
+  account: Account
+}>()
+
+const { t } = useI18n()
+
+// 当前并发数
+const currentConcurrency = computed(() => props.account.current_concurrency || 0)
+
+// 是否为 Anthropic OAuth/SetupToken 账号
+const isAnthropicOAuthOrSetupToken = computed(() => {
+  return (
+    props.account.platform === 'anthropic' &&
+    (props.account.type === 'oauth' || props.account.type === 'setup-token')
+  )
+})
+
+// 是否显示窗口费用限制
+const showWindowCost = computed(() => {
+  return (
+    isAnthropicOAuthOrSetupToken.value &&
+    props.account.window_cost_limit !== undefined &&
+    props.account.window_cost_limit !== null &&
+    props.account.window_cost_limit > 0
+  )
+})
+
+// 当前窗口费用
+const currentWindowCost = computed(() => props.account.current_window_cost ?? 0)
+
+// 是否显示会话限制
+const showSessionLimit = computed(() => {
+  return (
+    isAnthropicOAuthOrSetupToken.value &&
+    props.account.max_sessions !== undefined &&
+    props.account.max_sessions !== null &&
+    props.account.max_sessions > 0
+  )
+})
+
+// 当前活跃会话数
+const activeSessions = computed(() => props.account.active_sessions ?? 0)
+
+// 并发状态样式
+const concurrencyClass = computed(() => {
+  const current = currentConcurrency.value
+  const max = props.account.concurrency
+
+  if (current >= max) {
+    return 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-400'
+  }
+  if (current > 0) {
+    return 'bg-yellow-100 text-yellow-700 dark:bg-yellow-900/30 dark:text-yellow-400'
+  }
+  return 'bg-gray-100 text-gray-600 dark:bg-gray-800 dark:text-gray-400'
+})
+
+// 窗口费用状态样式
+const windowCostClass = computed(() => {
+  if (!showWindowCost.value) return ''
+
+  const current = currentWindowCost.value
+  const limit = props.account.window_cost_limit || 0
+  const reserve = props.account.window_cost_sticky_reserve || 10
+
+  // >= 阈值+预留: 完全不可调度 (红色)
+  if (current >= limit + reserve) {
+    return 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-400'
+  }
+  // >= 阈值: 仅粘性会话 (橙色)
+  if (current >= limit) {
+    return 'bg-orange-100 text-orange-700 dark:bg-orange-900/30 dark:text-orange-400'
+  }
+  // >= 80% 阈值: 警告 (黄色)
+  if (current >= limit * 0.8) {
+    return 'bg-yellow-100 text-yellow-700 dark:bg-yellow-900/30 dark:text-yellow-400'
+  }
+  // 正常 (绿色)
+  return 'bg-emerald-100 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-400'
+})
+
+// 窗口费用提示文字
+const windowCostTooltip = computed(() => {
+  if (!showWindowCost.value) return ''
+
+  const current = currentWindowCost.value
+  const limit = props.account.window_cost_limit || 0
+  const reserve = props.account.window_cost_sticky_reserve || 10
+
+  if (current >= limit + reserve) {
+    return t('admin.accounts.capacity.windowCost.blocked')
+  }
+  if (current >= limit) {
+    return t('admin.accounts.capacity.windowCost.stickyOnly')
+  }
+  return t('admin.accounts.capacity.windowCost.normal')
+})
+
+// 会话限制状态样式
+const sessionLimitClass = computed(() => {
+  if (!showSessionLimit.value) return ''
+
+  const current = activeSessions.value
+  const max = props.account.max_sessions || 0
+
+  // >= 最大: 完全占满 (红色)
+  if (current >= max) {
+    return 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-400'
+  }
+  // >= 80%: 警告 (黄色)
+  if (current >= max * 0.8) {
+    return 'bg-yellow-100 text-yellow-700 dark:bg-yellow-900/30 dark:text-yellow-400'
+  }
+  // 正常 (绿色)
+  return 'bg-emerald-100 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-400'
+})
+
+// 会话限制提示文字
+const sessionLimitTooltip = computed(() => {
+  if (!showSessionLimit.value) return ''
+
+  const current = activeSessions.value
+  const max = props.account.max_sessions || 0
+  const idle = props.account.session_idle_timeout_minutes || 5
+
+  if (current >= max) {
+    return t('admin.accounts.capacity.sessions.full', { idle })
+  }
+  return t('admin.accounts.capacity.sessions.normal', { idle })
+})
+
+// 格式化费用显示
+const formatCost = (value: number | null | undefined) => {
+  if (value === null || value === undefined) return '0'
+  return value.toFixed(2)
+}
+</script>

frontend/src/components/account/EditAccountModal.vue

@@ -604,6 +604,136 @@
         </div>
       </div>
 
+      <!-- Quota Control Section (Anthropic OAuth/SetupToken only) -->
+      <div
+        v-if="account?.platform === 'anthropic' && (account?.type === 'oauth' || account?.type === 'setup-token')"
+        class="border-t border-gray-200 pt-4 dark:border-dark-600 space-y-4"
+      >
+        <div class="mb-3">
+          <h3 class="input-label mb-0 text-base font-semibold">{{ t('admin.accounts.quotaControl.title') }}</h3>
+          <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+            {{ t('admin.accounts.quotaControl.hint') }}
+          </p>
+        </div>
+
+        <!-- Window Cost Limit -->
+        <div class="rounded-lg border border-gray-200 p-4 dark:border-dark-600">
+          <div class="mb-3 flex items-center justify-between">
+            <div>
+              <label class="input-label mb-0">{{ t('admin.accounts.quotaControl.windowCost.label') }}</label>
+              <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                {{ t('admin.accounts.quotaControl.windowCost.hint') }}
+              </p>
+            </div>
+            <button
+              type="button"
+              @click="windowCostEnabled = !windowCostEnabled"
+              :class="[
+                'relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2',
+                windowCostEnabled ? 'bg-primary-600' : 'bg-gray-200 dark:bg-dark-600'
+              ]"
+            >
+              <span
+                :class="[
+                  'pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out',
+                  windowCostEnabled ? 'translate-x-5' : 'translate-x-0'
+                ]"
+              />
+            </button>
+          </div>
+
+          <div v-if="windowCostEnabled" class="grid grid-cols-2 gap-4">
+            <div>
+              <label class="input-label">{{ t('admin.accounts.quotaControl.windowCost.limit') }}</label>
+              <div class="relative">
+                <span class="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500 dark:text-gray-400">$</span>
+                <input
+                  v-model.number="windowCostLimit"
+                  type="number"
+                  min="0"
+                  step="1"
+                  class="input pl-7"
+                  :placeholder="t('admin.accounts.quotaControl.windowCost.limitPlaceholder')"
+                />
+              </div>
+              <p class="input-hint">{{ t('admin.accounts.quotaControl.windowCost.limitHint') }}</p>
+            </div>
+            <div>
+              <label class="input-label">{{ t('admin.accounts.quotaControl.windowCost.stickyReserve') }}</label>
+              <div class="relative">
+                <span class="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500 dark:text-gray-400">$</span>
+                <input
+                  v-model.number="windowCostStickyReserve"
+                  type="number"
+                  min="0"
+                  step="1"
+                  class="input pl-7"
+                  :placeholder="t('admin.accounts.quotaControl.windowCost.stickyReservePlaceholder')"
+                />
+              </div>
+              <p class="input-hint">{{ t('admin.accounts.quotaControl.windowCost.stickyReserveHint') }}</p>
+            </div>
+          </div>
+        </div>
+
+        <!-- Session Limit -->
+        <div class="rounded-lg border border-gray-200 p-4 dark:border-dark-600">
+          <div class="mb-3 flex items-center justify-between">
+            <div>
+              <label class="input-label mb-0">{{ t('admin.accounts.quotaControl.sessionLimit.label') }}</label>
+              <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                {{ t('admin.accounts.quotaControl.sessionLimit.hint') }}
+              </p>
+            </div>
+            <button
+              type="button"
+              @click="sessionLimitEnabled = !sessionLimitEnabled"
+              :class="[
+                'relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2',
+                sessionLimitEnabled ? 'bg-primary-600' : 'bg-gray-200 dark:bg-dark-600'
+              ]"
+            >
+              <span
+                :class="[
+                  'pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out',
+                  sessionLimitEnabled ? 'translate-x-5' : 'translate-x-0'
+                ]"
+              />
+            </button>
+          </div>
+
+          <div v-if="sessionLimitEnabled" class="grid grid-cols-2 gap-4">
+            <div>
+              <label class="input-label">{{ t('admin.accounts.quotaControl.sessionLimit.maxSessions') }}</label>
+              <input
+                v-model.number="maxSessions"
+                type="number"
+                min="1"
+                step="1"
+                class="input"
+                :placeholder="t('admin.accounts.quotaControl.sessionLimit.maxSessionsPlaceholder')"
+              />
+              <p class="input-hint">{{ t('admin.accounts.quotaControl.sessionLimit.maxSessionsHint') }}</p>
+            </div>
+            <div>
+              <label class="input-label">{{ t('admin.accounts.quotaControl.sessionLimit.idleTimeout') }}</label>
+              <div class="relative">
+                <input
+                  v-model.number="sessionIdleTimeout"
+                  type="number"
+                  min="1"
+                  step="1"
+                  class="input pr-12"
+                  :placeholder="t('admin.accounts.quotaControl.sessionLimit.idleTimeoutPlaceholder')"
+                />
+                <span class="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500 dark:text-gray-400">{{ t('common.minutes') }}</span>
+              </div>
+              <p class="input-hint">{{ t('admin.accounts.quotaControl.sessionLimit.idleTimeoutHint') }}</p>
+            </div>
+          </div>
+        </div>
+      </div>
+
       <div class="border-t border-gray-200 pt-4 dark:border-dark-600">
         <div>
           <label class="input-label">{{ t('common.status') }}</label>
@@ -767,6 +897,14 @@ const mixedScheduling = ref(false) // For antigravity accounts: enable mixed sch
 const tempUnschedEnabled = ref(false)
 const tempUnschedRules = ref<TempUnschedRuleForm[]>([])
 
+// Quota control state (Anthropic OAuth/SetupToken only)
+const windowCostEnabled = ref(false)
+const windowCostLimit = ref<number | null>(null)
+const windowCostStickyReserve = ref<number | null>(null)
+const sessionLimitEnabled = ref(false)
+const maxSessions = ref<number | null>(null)
+const sessionIdleTimeout = ref<number | null>(null)
+
 // Computed: current preset mappings based on platform
 const presetMappings = computed(() => getPresetMappingsByPlatform(props.account?.platform || 'anthropic'))
 const tempUnschedPresets = computed(() => [
@@ -854,6 +992,9 @@ watch(
       const extra = newAccount.extra as Record<string, unknown> | undefined
       mixedScheduling.value = extra?.mixed_scheduling === true
 
+      // Load quota control settings (Anthropic OAuth/SetupToken only)
+      loadQuotaControlSettings(newAccount)
+
       loadTempUnschedRules(credentials)
 
       // Initialize API Key fields for apikey type
@@ -1087,6 +1228,35 @@ function loadTempUnschedRules(credentials?: Record<string, unknown>) {
   })
 }
 
+// Load quota control settings from account (Anthropic OAuth/SetupToken only)
+function loadQuotaControlSettings(account: Account) {
+  // Reset all quota control state first
+  windowCostEnabled.value = false
+  windowCostLimit.value = null
+  windowCostStickyReserve.value = null
+  sessionLimitEnabled.value = false
+  maxSessions.value = null
+  sessionIdleTimeout.value = null
+
+  // Only applies to Anthropic OAuth/SetupToken accounts
+  if (account.platform !== 'anthropic' || (account.type !== 'oauth' && account.type !== 'setup-token')) {
+    return
+  }
+
+  // Load from extra field (via backend DTO fields)
+  if (account.window_cost_limit != null && account.window_cost_limit > 0) {
+    windowCostEnabled.value = true
+    windowCostLimit.value = account.window_cost_limit
+    windowCostStickyReserve.value = account.window_cost_sticky_reserve ?? 10
+  }
+
+  if (account.max_sessions != null && account.max_sessions > 0) {
+    sessionLimitEnabled.value = true
+    maxSessions.value = account.max_sessions
+    sessionIdleTimeout.value = account.session_idle_timeout_minutes ?? 5
+  }
+}
+
 function formatTempUnschedKeywords(value: unknown) {
   if (Array.isArray(value)) {
     return value
@@ -1214,6 +1384,32 @@ const handleSubmit = async () => {
       updatePayload.extra = newExtra
     }
 
+    // For Anthropic OAuth/SetupToken accounts, handle quota control settings in extra
+    if (props.account.platform === 'anthropic' && (props.account.type === 'oauth' || props.account.type === 'setup-token')) {
+      const currentExtra = (props.account.extra as Record<string, unknown>) || {}
+      const newExtra: Record<string, unknown> = { ...currentExtra }
+
+      // Window cost limit settings
+      if (windowCostEnabled.value && windowCostLimit.value != null && windowCostLimit.value > 0) {
+        newExtra.window_cost_limit = windowCostLimit.value
+        newExtra.window_cost_sticky_reserve = windowCostStickyReserve.value ?? 10
+      } else {
+        delete newExtra.window_cost_limit
+        delete newExtra.window_cost_sticky_reserve
+      }
+
+      // Session limit settings
+      if (sessionLimitEnabled.value && maxSessions.value != null && maxSessions.value > 0) {
+        newExtra.max_sessions = maxSessions.value
+        newExtra.session_idle_timeout_minutes = sessionIdleTimeout.value ?? 5
+      } else {
+        delete newExtra.max_sessions
+        delete newExtra.session_idle_timeout_minutes
+      }
+
+      updatePayload.extra = newExtra
+    }
+
     await adminAPI.accounts.update(props.account.id, updatePayload)
     appStore.showSuccess(t('admin.accounts.accountUpdated'))
     emit('updated')

frontend/src/i18n/locales/en.ts

@@ -163,6 +163,7 @@ export default {
     notAvailable: 'N/A',
     now: 'Now',
     unknown: 'Unknown',
+    minutes: 'min',
     time: {
       never: 'Never',
       justNow: 'Just now',
@@ -1082,7 +1083,7 @@ export default {
         platformType: 'Platform/Type',
         platform: 'Platform',
         type: 'Type',
-        concurrencyStatus: 'Concurrency',
+        capacity: 'Capacity',
         notes: 'Notes',
         priority: 'Priority',
         billingRateMultiplier: 'Billing Rate',
@@ -1096,6 +1097,18 @@ export default {
         expiresAt: 'Expires At',
         actions: 'Actions'
       },
+      // Capacity status tooltips
+      capacity: {
+        windowCost: {
+          blocked: '5h window cost exceeded, account scheduling paused',
+          stickyOnly: '5h window cost at threshold, only sticky sessions allowed',
+          normal: '5h window cost normal'
+        },
+        sessions: {
+          full: 'Active sessions full, new sessions must wait (idle timeout: {idle} min)',
+          normal: 'Active sessions normal (idle timeout: {idle} min)'
+        }
+      },
       tempUnschedulable: {
         title: 'Temp Unschedulable',
         statusTitle: 'Temp Unschedulable Status',
@@ -1247,6 +1260,31 @@ export default {
         'When enabled, warmup requests like title generation will return mock responses without consuming upstream tokens',
       autoPauseOnExpired: 'Auto Pause On Expired',
       autoPauseOnExpiredDesc: 'When enabled, the account will auto pause scheduling after it expires',
+      // Quota control (Anthropic OAuth/SetupToken only)
+      quotaControl: {
+        title: 'Quota Control',
+        hint: 'Only applies to Anthropic OAuth/Setup Token accounts',
+        windowCost: {
+          label: '5h Window Cost Limit',
+          hint: 'Limit account cost usage within the 5-hour window',
+          limit: 'Cost Threshold',
+          limitPlaceholder: '50',
+          limitHint: 'Account will not participate in new scheduling after reaching threshold',
+          stickyReserve: 'Sticky Reserve',
+          stickyReservePlaceholder: '10',
+          stickyReserveHint: 'Additional reserve for sticky sessions'
+        },
+        sessionLimit: {
+          label: 'Session Count Limit',
+          hint: 'Limit the number of active concurrent sessions',
+          maxSessions: 'Max Sessions',
+          maxSessionsPlaceholder: '3',
+          maxSessionsHint: 'Maximum number of active concurrent sessions',
+          idleTimeout: 'Idle Timeout',
+          idleTimeoutPlaceholder: '5',
+          idleTimeoutHint: 'Sessions will be released after idle timeout'
+        }
+      },
       expired: 'Expired',
       proxy: 'Proxy',
       noProxy: 'No Proxy',

frontend/src/i18n/locales/zh.ts

@@ -160,6 +160,7 @@ export default {
     notAvailable: '不可用',
     now: '现在',
     unknown: '未知',
+    minutes: '分钟',
     time: {
       never: '从未',
       justNow: '刚刚',
@@ -1131,7 +1132,7 @@ export default {
         platformType: '平台/类型',
         platform: '平台',
         type: '类型',
-        concurrencyStatus: '并发',
+        capacity: '容量',
         notes: '备注',
         priority: '优先级',
         billingRateMultiplier: '账号倍率',
@@ -1145,6 +1146,18 @@ export default {
         expiresAt: '过期时间',
         actions: '操作'
       },
+      // 容量状态提示
+      capacity: {
+        windowCost: {
+          blocked: '5h窗口费用超限，账号暂停调度',
+          stickyOnly: '5h窗口费用达阈值，仅允许粘性会话',
+          normal: '5h窗口费用正常'
+        },
+        sessions: {
+          full: '活跃会话已满，新会话需等待（空闲超时：{idle}分钟）',
+          normal: '活跃会话正常（空闲超时：{idle}分钟）'
+        }
+      },
       clearRateLimit: '清除速率限制',
       testConnection: '测试连接',
       reAuthorize: '重新授权',
@@ -1380,6 +1393,31 @@ export default {
       interceptWarmupRequestsDesc: '启用后，标题生成等预热请求将返回 mock 响应，不消耗上游 token',
       autoPauseOnExpired: '过期自动暂停调度',
       autoPauseOnExpiredDesc: '启用后，账号过期将自动暂停调度',
+      // Quota control (Anthropic OAuth/SetupToken only)
+      quotaControl: {
+        title: '配额控制',
+        hint: '仅适用于 Anthropic OAuth/Setup Token 账号',
+        windowCost: {
+          label: '5h窗口费用控制',
+          hint: '限制账号在5小时窗口内的费用使用',
+          limit: '费用阈值',
+          limitPlaceholder: '50',
+          limitHint: '达到阈值后不参与新请求调度',
+          stickyReserve: '粘性预留额度',
+          stickyReservePlaceholder: '10',
+          stickyReserveHint: '为粘性会话预留的额外额度'
+        },
+        sessionLimit: {
+          label: '会话数量控制',
+          hint: '限制同时活跃的会话数量',
+          maxSessions: '最大会话数',
+          maxSessionsPlaceholder: '3',
+          maxSessionsHint: '同时活跃的最大会话数量',
+          idleTimeout: '空闲超时',
+          idleTimeoutPlaceholder: '5',
+          idleTimeoutHint: '会话空闲超时后自动释放'
+        }
+      },
       expired: '已过期',
       proxy: '代理',
       noProxy: '无代理',

frontend/src/types/index.ts

@@ -471,6 +471,18 @@ export interface Account {
   session_window_start: string | null
   session_window_end: string | null
   session_window_status: 'allowed' | 'allowed_warning' | 'rejected' | null
+
+  // 5h窗口费用控制（仅 Anthropic OAuth/SetupToken 账号有效）
+  window_cost_limit?: number | null
+  window_cost_sticky_reserve?: number | null
+
+  // 会话数量控制（仅 Anthropic OAuth/SetupToken 账号有效）
+  max_sessions?: number | null
+  session_idle_timeout_minutes?: number | null
+
+  // 运行时状态（仅当启用对应限制时返回）
+  current_window_cost?: number | null // 当前窗口费用
+  active_sessions?: number | null // 当前活跃会话数
 }
 
 // Account Usage types

frontend/src/views/admin/AccountsView.vue

@@ -34,15 +34,8 @@
           <template #cell-platform_type="{ row }">
             <PlatformTypeBadge :platform="row.platform" :type="row.type" />
           </template>
-          <template #cell-concurrency="{ row }">
-            <div class="flex items-center gap-1.5">
-              <span :class="['inline-flex items-center gap-1 rounded-md px-2 py-0.5 text-xs font-medium', (row.current_concurrency || 0) >= row.concurrency ? 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-400' : (row.current_concurrency || 0) > 0 ? 'bg-yellow-100 text-yellow-700 dark:bg-yellow-900/30 dark:text-yellow-400' : 'bg-gray-100 text-gray-600 dark:bg-gray-800 dark:text-gray-400']">
-                <svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2"><path stroke-linecap="round" stroke-linejoin="round" d="M3.75 6A2.25 2.25 0 016 3.75h2.25A2.25 2.25 0 0110.5 6v2.25a2.25 2.25 0 01-2.25 2.25H6a2.25 2.25 0 01-2.25-2.25V6zM3.75 15.75A2.25 2.25 0 016 13.5h2.25a2.25 2.25 0 012.25 2.25V18a2.25 2.25 0 01-2.25 2.25H6A2.25 2.25 0 013.75 18v-2.25zM13.5 6a2.25 2.25 0 012.25-2.25H18A2.25 2.25 0 0120.25 6v2.25A2.25 2.25 0 0118 10.5h-2.25a2.25 2.25 0 01-2.25-2.25V6zM13.5 15.75a2.25 2.25 0 012.25-2.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-2.25A2.25 2.25 0 0113.5 18v-2.25z" /></svg>
-                <span class="font-mono">{{ row.current_concurrency || 0 }}</span>
-                <span class="text-gray-400 dark:text-gray-500">/</span>
-                <span class="font-mono">{{ row.concurrency }}</span>
-              </span>
-            </div>
+          <template #cell-capacity="{ row }">
+            <AccountCapacityCell :account="row" />
           </template>
           <template #cell-status="{ row }">
             <AccountStatusIndicator :account="row" @show-temp-unsched="handleShowTempUnsched" />
@@ -148,6 +141,7 @@ import AccountStatusIndicator from '@/components/account/AccountStatusIndicator.
 import AccountUsageCell from '@/components/account/AccountUsageCell.vue'
 import AccountTodayStatsCell from '@/components/account/AccountTodayStatsCell.vue'
 import AccountGroupsCell from '@/components/account/AccountGroupsCell.vue'
+import AccountCapacityCell from '@/components/account/AccountCapacityCell.vue'
 import PlatformTypeBadge from '@/components/common/PlatformTypeBadge.vue'
 import { formatDateTime, formatRelativeTime } from '@/utils/format'
 import type { Account, Proxy, Group } from '@/types'
@@ -187,7 +181,7 @@ const cols = computed(() => {
     { key: 'select', label: '', sortable: false },
     { key: 'name', label: t('admin.accounts.columns.name'), sortable: true },
     { key: 'platform_type', label: t('admin.accounts.columns.platformType'), sortable: false },
-    { key: 'concurrency', label: t('admin.accounts.columns.concurrencyStatus'), sortable: false },
+    { key: 'capacity', label: t('admin.accounts.columns.capacity'), sortable: false },
     { key: 'status', label: t('admin.accounts.columns.status'), sortable: true },
     { key: 'schedulable', label: t('admin.accounts.columns.schedulable'), sortable: true },
     { key: 'today_stats', label: t('admin.accounts.columns.todayStats'), sortable: false }