feat(integration): 新增数据接入监控页

- 字段：车牌 / VIN / 品牌+型号 / GB32960 状态+最后接收 / JT808 状态+最后接收 / 接入时间
- 状态：在线 / 断流 / 未对接，三色 pill + 脉冲点
- 重点标记：双协议均未对接的车辆 → 行红底 + 警示图标 + 顶部 banner
- 工具栏：搜索（车牌/VIN/品牌/型号）+ 5 维筛选 + 4 维排序 + CSV 导出
- KPI：总车辆 / GB 在线 / GB 断流 / JT 在线 / JT 断流 / 完全未对接
- 数据：fleet.js 增 brand/model/gbStatus/gbLastSeen/jtStatus/jtLastSeen/onboardAt
- 路由 #/integration · sidebar 增 plug 图标项

app.jsx

@@ -6,8 +6,9 @@ const ROUTES = [
   { path: "detail",    icon: "car",     label: "车辆详情",   crumbs: ["羚牛车辆数据中心", "实时监控", "单车详情"], component: "ArtboardDetail" },
   { path: "history",   icon: "history", label: "历史查询",   crumbs: ["羚牛车辆数据中心", "数据分析", "历史查询"], component: "ArtboardHistory" },
   { path: "playback",  icon: "route",   label: "轨迹回放",   crumbs: ["羚牛车辆数据中心", "数据分析", "轨迹回放"], component: "ArtboardPlayback" },
-  { path: "alarm",     icon: "bell",    label: "事件规则",   crumbs: ["羚牛车辆数据中心", "事件中心", "规则编排"],     component: "ArtboardAlarm" },
-  { path: "inbox",     icon: "inbox",   label: "通知中心",   crumbs: ["羚牛车辆数据中心", "事件中心", "通知中心"],     component: "ArtboardInbox" },
+  { path: "alarm",       icon: "bell",  label: "事件规则",       crumbs: ["羚牛车辆数据中心", "事件中心", "规则编排"], component: "ArtboardAlarm" },
+  { path: "inbox",       icon: "inbox", label: "通知中心",       crumbs: ["羚牛车辆数据中心", "事件中心", "通知中心"], component: "ArtboardInbox" },
+  { path: "integration", icon: "plug",  label: "数据接入监控",   crumbs: ["羚牛车辆数据中心", "数据接入", "监控总览"], component: "ArtboardIntegration" },
 ];
 
 const SUB_ROUTES = [