refactor(ui): extract SectionHeader + drop deprecated CronPoolMonitor (audit P2)

UI/UX 盘点 P2 + 清理：
- 新增 SectionHeader 共享组件，替换 DecisionProcess/ConfigSnapshots（主列表+快照
  对比）/EvalReport 自管 header 的重复（返回+标题+右侧操作区）
- 删除已 DEPRECATED 的 CronPoolMonitor 页面及其测试（导航早已移除，监控职责
  已由 TaskQueueMonitor 承担）
tsc 0 错误 vitest 16 passed（CronPoolMonitor 3 测试随之删除）

frontend/web/src/components/SectionHeader.tsx

@@ -0,0 +1,29 @@
+import { Button } from 'antd'
+import { ArrowLeftOutlined } from '@ant-design/icons'
+import type { ReactNode } from 'react'
+import { colors } from '../tokens'
+
+interface SectionHeaderProps {
+  title: ReactNode
+  /** 提供时显示"返回"按钮（子视图/抽屉 tab 环境可省）。 */
+  onBack?: () => void
+  /** 返回按钮文案（默认"返回"）。 */
+  backLabel?: string
+  /** 右侧操作区（筛选/刷新/导出等）。 */
+  actions?: ReactNode
+}
+
+/**
+ * 内容区子视图的标准横排头部：可选返回按钮 + 标题 + 右侧操作区。
+ * 供智能评估等 Drawer/Tabs 内容组件复用，消除各自手写 header 的重复。
+ */
+export default function SectionHeader({ title, onBack, backLabel = '返回', actions }: SectionHeaderProps) {
+  return (
+    <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 12 }}>
+      {onBack && <Button icon={<ArrowLeftOutlined />} onClick={onBack}>{backLabel}</Button>}
+      <span style={{ fontSize: 16, fontWeight: 600, color: colors.text }}>{title}</span>
+      <div style={{ flex: 1 }} />
+      {actions}
+    </div>
+  )
+}

frontend/web/src/components/intelligent_eval/ConfigSnapshots.tsx

@@ -4,6 +4,7 @@ import {
 } from 'antd'
 import type { ColumnsType } from 'antd/es/table'
 import { ArrowLeftOutlined, DiffOutlined, ReloadOutlined } from '@ant-design/icons'
+import SectionHeader from '../SectionHeader'
 import { intelligentEvalsApi, type ConfigSnapshot, type ConfigSnapshotComparison } from '../../api'
 import { colors } from '../../tokens'
 import { formatDateTime } from '../../utils/date'
@@ -182,10 +183,7 @@ export default function ConfigSnapshots({ evalId, onBack }: ConfigSnapshotsProps
   if (compareMode && comparison) {
     return (
       <div style={{ height: '100%', overflowY: 'auto', padding: 16 }}>
-        <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 16 }}>
-          <Button icon={<ArrowLeftOutlined />} onClick={() => setCompareMode(false)}>返回</Button>
-          <span style={{ fontSize: 16, fontWeight: 600 }}>快照对比</span>
-        </div>
+        <SectionHeader title="快照对比" onBack={() => setCompareMode(false)} />
 
         <Card size="small" title="对比信息" style={{ marginBottom: 16 }}>
           <Descriptions column={2} size="small">
@@ -241,19 +239,22 @@ export default function ConfigSnapshots({ evalId, onBack }: ConfigSnapshotsProps
 
   return (
     <div style={{ height: '100%', overflowY: 'auto', padding: 16 }}>
-      <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 16 }}>
-        {onBack && <Button icon={<ArrowLeftOutlined />} onClick={onBack}>返回</Button>}
-        <span style={{ fontSize: 16, fontWeight: 600 }}>配置历史</span>
-        <div style={{ flex: 1 }} />
-        <Button icon={<ReloadOutlined />} onClick={() => void loadSnapshots()}>刷新</Button>
-        <Button
-          icon={<DiffOutlined />}
-          disabled={selectedForCompare.length !== 2}
-          onClick={handleCompare}
-        >
-          对比选中
-        </Button>
-      </div>
+      <SectionHeader
+        title="配置历史"
+        onBack={onBack}
+        actions={(
+          <>
+            <Button icon={<ReloadOutlined />} onClick={() => void loadSnapshots()}>刷新</Button>
+            <Button
+              icon={<DiffOutlined />}
+              disabled={selectedForCompare.length !== 2}
+              onClick={handleCompare}
+            >
+              对比选中
+            </Button>
+          </>
+        )}
+      />
 
       <Table
         rowKey="id"

frontend/web/src/components/intelligent_eval/DecisionProcess.tsx

@@ -3,7 +3,8 @@ import {
   Button, Card, Empty, Select, Table, Tag, Timeline, message,
 } from 'antd'
 import type { ColumnsType } from 'antd/es/table'
-import { ArrowLeftOutlined, DownloadOutlined, ReloadOutlined } from '@ant-design/icons'
+import { DownloadOutlined, ReloadOutlined } from '@ant-design/icons'
+import SectionHeader from '../SectionHeader'
 import { intelligentEvalsApi, type DecisionLog } from '../../api'
 import { colors } from '../../tokens'
 import { formatDateTime } from '../../utils/date'
@@ -106,24 +107,27 @@ export default function DecisionProcess({ evalId, onBack }: DecisionProcessProps
 
   return (
     <div style={{ height: '100%', overflowY: 'auto', padding: 16 }}>
-      <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 16 }}>
-        {onBack && <Button icon={<ArrowLeftOutlined />} onClick={onBack}>返回</Button>}
-        <span style={{ fontSize: 16, fontWeight: 600 }}>决策过程</span>
-        <div style={{ flex: 1 }} />
-        <Select
-          placeholder="筛选决策类型"
-          allowClear
-          style={{ width: 160 }}
-          onChange={(val) => setFilterType(val ?? null)}
-          options={[
-            { label: '执行会话', value: 'execute_session' },
-            { label: '等待', value: 'wait' },
-            { label: '开始分析', value: 'start_analysis' },
-          ]}
-        />
-        <Button icon={<ReloadOutlined />} onClick={() => void loadLogs()}>刷新</Button>
-        <Button icon={<DownloadOutlined />} onClick={handleExport}>导出</Button>
-      </div>
+      <SectionHeader
+        title="决策过程"
+        onBack={onBack}
+        actions={(
+          <>
+            <Select
+              placeholder="筛选决策类型"
+              allowClear
+              style={{ width: 160 }}
+              onChange={(val) => setFilterType(val ?? null)}
+              options={[
+                { label: '执行会话', value: 'execute_session' },
+                { label: '等待', value: 'wait' },
+                { label: '开始分析', value: 'start_analysis' },
+              ]}
+            />
+            <Button icon={<ReloadOutlined />} onClick={() => void loadLogs()}>刷新</Button>
+            <Button icon={<DownloadOutlined />} onClick={handleExport}>导出</Button>
+          </>
+        )}
+      />
 
       <Card size="small" title="决策时间线" style={{ marginBottom: 16 }}>
         {loading ? (

frontend/web/src/components/intelligent_eval/EvalReport.tsx

@@ -3,11 +3,11 @@ import {
   Button, Card, Col, Collapse, Empty, Row, Space, Spin, Tag, message,
 } from 'antd'
 import {
-  ArrowLeftOutlined, BulbOutlined, DownloadOutlined, MessageOutlined,
-  StarOutlined, WarningOutlined,
+  BulbOutlined, DownloadOutlined, MessageOutlined, StarOutlined, WarningOutlined,
 } from '@ant-design/icons'
 import { Bar } from '@ant-design/charts'
 import ChatBubble from '../ChatBubble'
+import SectionHeader from '../SectionHeader'
 import {
   intelligentEvalsApi,
   type IntelligentEval,
@@ -175,18 +175,16 @@ export default function EvalReport({ ev, onBack }: EvalReportProps) {
 
   return (
     <div style={{ height: '100%', overflowY: 'auto', padding: 16 }}>
-      <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 12 }}>
-        {onBack && <Button icon={<ArrowLeftOutlined />} onClick={onBack}>返回详情</Button>}
-        <span style={{ fontSize: 16, fontWeight: 600, color: colors.text }}>
-          {ev.name} · 评估报告
-        </span>
-        <div style={{ flex: 1 }} />
-        {report && (
+      <SectionHeader
+        title={`${ev.name} · 评估报告`}
+        onBack={onBack}
+        backLabel="返回详情"
+        actions={report && (
           <Button icon={<DownloadOutlined />} loading={exporting} onClick={exportMarkdown}>
             导出 Markdown
           </Button>
         )}
-      </div>
+      />
 
       {reportLoading && <Spin />}
 

frontend/web/src/pages/CronPoolMonitor.test.tsx

@@ -1,126 +0,0 @@
-// @vitest-environment jsdom
-import { act, cleanup, render } from '@testing-library/react'
-import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
-
-vi.mock('../api', () => ({
-  openclawCronPoolApi: {
-    getStatus: vi.fn(),
-    getMetrics: vi.fn(),
-    getAlerts: vi.fn(),
-    scale: vi.fn(),
-    resolveAlert: vi.fn(),
-  },
-}))
-
-vi.mock('antd', async () => {
-  const actual = await vi.importActual<typeof import('antd')>('antd')
-  return {
-    ...actual,
-    message: { error: vi.fn(), success: vi.fn(), warning: vi.fn(), info: vi.fn() },
-  }
-})
-
-import { openclawCronPoolApi } from '../api'
-import CronPoolMonitor from './CronPoolMonitor'
-
-const statusResp = {
-  data: { pool: { total: 5, idle: 3, busy: 2, stuck: 0, min_size: 5, max_size: 20 } },
-}
-const metricsResp = { data: { metrics: { pool_utilization: 0.4, task_backlog: 0, stuck_rate: 0 } } }
-const alertsResp = { data: { alerts: [] } }
-
-beforeEach(() => {
-  Object.defineProperty(window, 'matchMedia', {
-    writable: true,
-    value: vi.fn().mockImplementation((query: string) => ({
-      matches: false,
-      media: query,
-      onchange: null,
-      addListener: vi.fn(),
-      removeListener: vi.fn(),
-      addEventListener: vi.fn(),
-      removeEventListener: vi.fn(),
-      dispatchEvent: vi.fn(),
-    })),
-  })
-  vi.useFakeTimers()
-  vi.mocked(openclawCronPoolApi.getStatus).mockResolvedValue(statusResp as never)
-  vi.mocked(openclawCronPoolApi.getMetrics).mockResolvedValue(metricsResp as never)
-  vi.mocked(openclawCronPoolApi.getAlerts).mockResolvedValue(alertsResp as never)
-})
-
-afterEach(() => {
-  vi.useRealTimers()
-  cleanup()
-})
-
-async function settle() {
-  await act(async () => {
-    await Promise.resolve()
-  })
-}
-
-describe('CronPoolMonitor polling lifecycle', () => {
-  it('polls every 5 seconds while mounted', async () => {
-    render(<CronPoolMonitor />)
-    await settle()
-    expect(openclawCronPoolApi.getStatus).toHaveBeenCalledTimes(1)
-    await act(async () => {
-      await vi.advanceTimersByTimeAsync(5000)
-    })
-    await settle()
-    expect(openclawCronPoolApi.getStatus).toHaveBeenCalledTimes(2)
-    await act(async () => {
-      await vi.advanceTimersByTimeAsync(5000)
-    })
-    await settle()
-    expect(openclawCronPoolApi.getStatus).toHaveBeenCalledTimes(3)
-  })
-
-  it('clears the polling interval on unmount', async () => {
-    const { unmount } = render(<CronPoolMonitor />)
-    await settle()
-    await act(async () => {
-      await vi.advanceTimersByTimeAsync(5000)
-    })
-    await settle()
-    const before = vi.mocked(openclawCronPoolApi.getStatus).mock.calls.length
-    unmount()
-    await act(async () => {
-      await Promise.resolve()
-      await Promise.resolve()
-    })
-    await act(async () => {
-      await vi.advanceTimersByTimeAsync(30000)
-    })
-    await settle()
-    const after = vi.mocked(openclawCronPoolApi.getStatus).mock.calls.length
-    expect(after).toBe(before)
-  })
-  it('pauses polling while the document is hidden and resumes on visible', async () => {
-    // Default starting state is visible.
-    vi.spyOn(document, 'visibilityState', 'get').mockReturnValue('visible')
-
-    render(<CronPoolMonitor />)
-    await settle()
-    const initial = vi.mocked(openclawCronPoolApi.getStatus).mock.calls.length
-    expect(initial).toBeGreaterThanOrEqual(1)
-
-    // While hidden, advancing the clock must NOT trigger another poll.
-    vi.spyOn(document, 'visibilityState', 'get').mockReturnValue('hidden')
-    document.dispatchEvent(new Event('visibilitychange'))
-    await act(async () => {
-      await vi.advanceTimersByTimeAsync(15000)
-    })
-    await settle()
-    const afterHidden = vi.mocked(openclawCronPoolApi.getStatus).mock.calls.length
-    expect(afterHidden).toBe(initial)
-
-    // Returning to visible resumes polling and triggers an immediate reload.
-    vi.spyOn(document, 'visibilityState', 'get').mockReturnValue('visible')
-    document.dispatchEvent(new Event('visibilitychange'))
-    await settle()
-    const afterVisible = vi.mocked(openclawCronPoolApi.getStatus).mock.calls.length
-    expect(afterVisible).toBeGreaterThan(initial)
-  })
-})

frontend/web/src/pages/CronPoolMonitor.tsx

@@ -1,222 +0,0 @@
-// DEPRECATED (ADR-0009): 智能评估已改为触发式执行，cron 池不再使用（worker cron 已禁用）。
-// 本页已从导航移除，遗留保留仅供回溯。监控职责由 TaskQueueMonitor（任务队列页）承担。
-import { useEffect, useState } from 'react'
-import {
-  Alert, Button, Card, Descriptions, Empty, InputNumber, Space, Statistic, Table, Tag, message,
-} from 'antd'
-import type { ColumnsType } from 'antd/es/table'
-import { ReloadOutlined, WarningOutlined } from '@ant-design/icons'
-import { openclawCronPoolApi, type CronPoolAlert, type CronPoolMetrics, type CronPoolStatus } from '../api'
-import { usePolling } from '../hooks/usePolling'
-import { colors } from '../tokens'
-import { formatDateTime } from '../utils/date'
-
-export default function CronPoolMonitor() {
-  const [status, setStatus] = useState<CronPoolStatus | null>(null)
-  const [metrics, setMetrics] = useState<CronPoolMetrics | null>(null)
-  const [alerts, setAlerts] = useState<CronPoolAlert[]>([])
-  const [loading, setLoading] = useState(false)
-  const [scaleTarget, setScaleTarget] = useState<number>(5)
-  const [scaleBusy, setScaleBusy] = useState(false)
-
-  const loadData = async () => {
-    setLoading(true)
-    try {
-      const [statusRes, metricsRes, alertsRes] = await Promise.all([
-        openclawCronPoolApi.getStatus(),
-        openclawCronPoolApi.getMetrics(),
-        openclawCronPoolApi.getAlerts(50),
-      ])
-      setStatus(statusRes.data.pool)
-      setMetrics(metricsRes.data.metrics)
-      setAlerts(alertsRes.data.alerts)
-    } catch {
-      message.error('加载数据失败')
-    } finally {
-      setLoading(false)
-    }
-  }
-
-  // Initial fetch (usePolling owns the 5s interval + visibility pause).
-  useEffect(() => {
-    void loadData()
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [])
-
-  // S6: defer the recurring 5s poll to the shared `usePolling` hook. The
-  // default pauses the timer while the document is hidden (background tab /
-  // minimised window) and re-fetches once on the way back to `visible`.
-  usePolling(() => { void loadData() }, 5000, true)
-
-  const handleScale = async () => {
-    setScaleBusy(true)
-    try {
-      await openclawCronPoolApi.scale(scaleTarget)
-      message.success('扩缩容成功')
-      await loadData()
-    } catch {
-      message.error('扩缩容失败')
-    } finally {
-      setScaleBusy(false)
-    }
-  }
-
-  const handleResolveAlert = async (alertId: string) => {
-    try {
-      await openclawCronPoolApi.resolveAlert(alertId)
-      message.success('已解决告警')
-      await loadData()
-    } catch {
-      message.error('解决告警失败')
-    }
-  }
-
-  const alertColumns: ColumnsType<CronPoolAlert> = [
-    {
-      title: '时间',
-      dataIndex: 'created_at',
-      key: 'created_at',
-      width: 180,
-      render: (val: string) => formatDateTime(val),
-    },
-    {
-      title: '级别',
-      dataIndex: 'severity',
-      key: 'severity',
-      width: 100,
-      render: (val: string) => (
-        <Tag color={val === 'critical' ? 'red' : val === 'warning' ? 'orange' : 'default'}>
-          {val === 'critical' ? '严重' : val === 'warning' ? '警告' : val}
-        </Tag>
-      ),
-    },
-    {
-      title: '类型',
-      dataIndex: 'alert_type',
-      key: 'alert_type',
-      width: 150,
-    },
-    {
-      title: '消息',
-      dataIndex: 'message',
-      key: 'message',
-      ellipsis: true,
-    },
-    {
-      title: '状态',
-      key: 'status',
-      width: 100,
-      render: (_, record) => (
-        record.resolved_at ? (
-          <Tag color="green">已解决</Tag>
-        ) : (
-          <Button size="small" type="primary" onClick={() => handleResolveAlert(record.id)}>
-            解决
-          </Button>
-        )
-      ),
-    },
-  ]
-
-  const unresolvedAlerts = alerts.filter((a) => !a.resolved_at)
-
-  return (
-    <div style={{ height: '100%', overflowY: 'auto', padding: 16 }}>
-      <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 16 }}>
-        <span style={{ fontSize: 18, fontWeight: 600 }}>Cron 池监控</span>
-        <div style={{ flex: 1 }} />
-        <Button icon={<ReloadOutlined />} onClick={() => void loadData()} loading={loading}>
-          刷新
-        </Button>
-      </div>
-
-      {unresolvedAlerts.length > 0 && (
-        <Alert
-          style={{ marginBottom: 16 }}
-          type="warning"
-          showIcon
-          icon={<WarningOutlined />}
-          message={`有 ${unresolvedAlerts.length} 个未解决的告警`}
-        />
-      )}
-
-      <Card size="small" title="池状态" style={{ marginBottom: 16 }}>
-        {status ? (
-          <div>
-            <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, 1fr)', gap: 16, marginBottom: 16 }}>
-              <Statistic title="总数" value={status.total} />
-              <Statistic title="空闲" value={status.idle} valueStyle={{ color: '#52c41a' }} />
-              <Statistic title="忙碌" value={status.busy} valueStyle={{ color: colors.primary }} />
-              <Statistic title="卡死" value={status.stuck} valueStyle={{ color: status.stuck > 0 ? '#ff4d4f' : undefined }} />
-            </div>
-            <Descriptions size="small" column={2}>
-              <Descriptions.Item label="最小池大小">{status.min_size}</Descriptions.Item>
-              <Descriptions.Item label="最大池大小">{status.max_size}</Descriptions.Item>
-            </Descriptions>
-            <div style={{ marginTop: 16 }}>
-              <Space>
-                <InputNumber
-                  min={status.min_size}
-                  max={status.max_size}
-                  value={scaleTarget}
-                  onChange={(val) => val && setScaleTarget(val)}
-                />
-                <Button type="primary" onClick={handleScale} loading={scaleBusy}>
-                  手动扩缩容
-                </Button>
-              </Space>
-            </div>
-          </div>
-        ) : (
-          <Empty description="加载中..." />
-        )}
-      </Card>
-
-      <Card size="small" title="监控指标" style={{ marginBottom: 16 }}>
-        {metrics ? (
-          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: 16 }}>
-            <Statistic
-              title="池使用率"
-              value={(metrics.pool_utilization * 100).toFixed(1)}
-              suffix="%"
-              valueStyle={{
-                color: metrics.pool_utilization > 0.9 ? '#ff4d4f' : metrics.pool_utilization > 0.7 ? colors.warning : undefined,
-              }}
-            />
-            <Statistic title="任务积压" value={metrics.task_backlog} />
-            <Statistic
-              title="卡死率"
-              value={(metrics.stuck_rate * 100).toFixed(1)}
-              suffix="%"
-              valueStyle={{ color: metrics.stuck_rate > 0.1 ? '#ff4d4f' : undefined }}
-            />
-            <Statistic
-              title="平均处理时间"
-              value={metrics.avg_processing_time_seconds ? (metrics.avg_processing_time_seconds / 60).toFixed(1) : '—'}
-              suffix={metrics.avg_processing_time_seconds ? '分钟' : ''}
-            />
-            <Statistic
-              title="评估完成率"
-              value={(metrics.eval_completion_rate * 100).toFixed(1)}
-              suffix="%"
-            />
-            <Statistic title="更新时间" value={formatDateTime(metrics.timestamp)} />
-          </div>
-        ) : (
-          <Empty description="加载中..." />
-        )}
-      </Card>
-
-      <Card size="small" title="告警历史">
-        <Table
-          rowKey="id"
-          loading={loading}
-          dataSource={alerts}
-          columns={alertColumns}
-          pagination={false}
-          locale={{ emptyText: <Empty description="暂无告警" /> }}
-        />
-      </Card>
-    </div>
-  )
-}