feat(platform): add customer service sla board

vehicle-data-platform/apps/web/src/pages/Dashboard.tsx

@@ -2019,6 +2019,40 @@ export function Dashboard({
       onClick: openTimeMonitorRaw
     }
   ];
+  const customerSlaItems = [
+    {
+      label: '断链发现',
+      value: '1 分钟内',
+      detail: 'Redis 在线状态按 1 分钟 TTL 形成准实时断链判断，优先确认车辆是否仍在上报。',
+      action: '在线状态',
+      color: 'green' as const,
+      onClick: () => onOpenRealtime({ online: 'offline' })
+    },
+    {
+      label: '异常通知',
+      value: `${formatCount(summary?.issueVehicles)} 告警`,
+      detail: highPriorityIssue ? `${qualityIssueLabel(highPriorityIssue.issueType)} 进入通知和升级闭环。` : '暂无高优先级告警，保持例行巡检。',
+      action: '通知闭环',
+      color: (summary?.issueVehicles ?? 0) > 0 ? 'orange' as const : 'green' as const,
+      onClick: () => onOpenQuality(highPriorityIssue?.issueType ? { issueType: highPriorityIssue.issueType } : {})
+    },
+    {
+      label: '恢复验收',
+      value: '轨迹/统计可查',
+      detail: '恢复不是只看链路 active，还要确认实时、轨迹、里程统计和历史证据都能打开。',
+      action: '验收证据',
+      color: 'blue' as const,
+      onClick: openTimeMonitorHistory
+    },
+    {
+      label: '数据交付',
+      value: `${formatCount(summary?.frameToday)} 今日数据`,
+      detail: '按客户车辆和时间窗导出历史位置、原始记录、解析字段和统计证据。',
+      action: '导出证据',
+      color: 'blue' as const,
+      onClick: openTimeMonitorRaw
+    }
+  ];
   const dispatchOperationsHighlights = [
     {
       label: '实时地图',
@@ -2512,6 +2546,35 @@ export function Dashboard({
             ))}
           </div>
         </section>
+        <section className="vp-customer-service-sla" aria-label="客户服务 SLA 承诺">
+          <div className="vp-customer-service-sla-copy">
+            <Space wrap>
+              <Tag color="blue">客户服务 SLA 承诺</Tag>
+              <Tag color={(summary?.issueVehicles ?? 0) > 0 ? 'orange' : 'green'}>{formatCount(summary?.issueVehicles)} 告警</Tag>
+              <Tag color={unhealthyLinkCount > 0 ? 'orange' : 'green'}>{unhealthyLinkCount.toLocaleString()} 链路异常</Tag>
+            </Space>
+            <Typography.Title heading={5} style={{ margin: 0 }}>把断链发现、异常通知、恢复验收和数据交付变成客户能看懂的服务承诺。</Typography.Title>
+            <Typography.Text type="secondary">
+              运维证据仍然独立展示；客户首页只看到哪些承诺正在被满足、哪些异常需要通知和验收。
+            </Typography.Text>
+          </div>
+          <div className="vp-customer-service-sla-grid">
+            {customerSlaItems.map((item) => (
+              <button
+                key={item.label}
+                type="button"
+                className="vp-customer-service-sla-item"
+                onClick={item.onClick}
+                aria-label={`客户服务 SLA 承诺 ${item.label} ${item.value} ${item.action}`}
+              >
+                <Tag color={item.color}>{item.label}</Tag>
+                <strong>{item.value}</strong>
+                <span>{item.detail}</span>
+                <em>{item.action}</em>
+              </button>
+            ))}
+          </div>
+        </section>
         <section className="vp-customer-cockpit" aria-label="现代车队运营台">
           <div className="vp-customer-cockpit-summary">
             <Space wrap>