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

data/fleet.js

@@ -133,6 +133,60 @@ const _enrich = (v, i) => {
   const h2 = v.status === "danger" ? 0.8 : (v.soc / 100 * 5.6 + 0.2).toFixed(1);
   const motorTemp = v.status === "danger" ? 102 : 58 + Math.floor(r()*15);
 
+  // ── Brand & model — 真实国内氢能车型样本 ──
+  const MODELS = [
+    { brand: "上汽大通",  model: "MIFA-H 氢燃料 MPV" },
+    { brand: "上汽大通",  model: "EUNIQ 7 氢电版" },
+    { brand: "现代",      model: "NEXO" },
+    { brand: "丰田",      model: "MIRAI 第二代" },
+    { brand: "格罗夫",    model: "格罗夫氢能 SUV" },
+    { brand: "海马汽车",  model: "7X-H" },
+    { brand: "红旗",      model: "H5 FCV" },
+    { brand: "长安深蓝",  model: "SL03 氢燃料版" },
+    { brand: "飞驰科技",  model: "FCB80 氢燃料客车" },
+    { brand: "宇通客车",  model: "ZK6105FCEVG3" },
+  ];
+  const m = MODELS[Math.floor(r() * MODELS.length)];
+
+  // ── Integration / 对接情况 ──
+  // src: T = TBOX(GB/T 32960), J = JT808/1078, B = both
+  // 状态：online (recent) / offline (had data, now stale) / not_connected (从未对接)
+  // 5% 完全未对接（重点标记） · 12% TBOX 断流 · 8% JT 断流
+  const integFlag = r();
+  let gbStatus, jtStatus;
+  if (i >= 12 && integFlag < 0.05) {
+    // 5% 全部未对接（重点标记）
+    gbStatus = "not_connected";
+    jtStatus = "not_connected";
+  } else {
+    if (v.src === "T" || v.src === "B") {
+      gbStatus = (r() < 0.12) ? "offline" : "online";
+    } else {
+      gbStatus = (r() < 0.30) ? "offline" : "not_connected";
+    }
+    if (v.src === "J" || v.src === "B") {
+      jtStatus = (r() < 0.08) ? "offline" : "online";
+    } else {
+      jtStatus = (r() < 0.20) ? "offline" : "not_connected";
+    }
+  }
+
+  // 时间戳生成
+  const now = Date.now();
+  const minute = 60 * 1000, hour = 60 * minute, day = 24 * hour;
+  const tsFor = (st, baseSeed) => {
+    if (st === "not_connected") return null;
+    if (st === "online") return now - Math.floor(baseSeed * 5 * minute) - 2000; // 2s ~ 5min
+    // offline
+    return now - Math.floor(baseSeed * 7 * day) - 30 * minute; // 30min ~ 7d ago
+  };
+  const gbLastSeen = tsFor(gbStatus, r());
+  const jtLastSeen = tsFor(jtStatus, r());
+
+  // 接入时间（首次对接日期，6 个月内随机）
+  const onboardDays = Math.floor(r() * 180) + 7;
+  const onboardAt = now - onboardDays * day;
+
   return {
     ...v,
     plate: v.id,
@@ -148,6 +202,12 @@ const _enrich = (v, i) => {
     // Hydrogen-specific
     h2Pressure: parseFloat(h2),
     range: Math.round(v.soc * 6.2),
+    // Brand / model
+    brand: m.brand, model: m.model,
+    // Integration / 对接情况
+    gbStatus, gbLastSeen,
+    jtStatus, jtLastSeen,
+    onboardAt,
   };
 };
 
@@ -175,6 +235,17 @@ const COUNTS = {
     acc[d.id] = VEHICLES.filter(v => v.dept === d.id).length;
     return acc;
   }, {}),
+  // Integration / 数据接入
+  gbOnline:    VEHICLES.filter(v => v.gbStatus === "online").length,
+  gbOffline:   VEHICLES.filter(v => v.gbStatus === "offline").length,
+  gbNotConn:   VEHICLES.filter(v => v.gbStatus === "not_connected").length,
+  jtOnline:    VEHICLES.filter(v => v.jtStatus === "online").length,
+  jtOffline:   VEHICLES.filter(v => v.jtStatus === "offline").length,
+  jtNotConn:   VEHICLES.filter(v => v.jtStatus === "not_connected").length,
+  // 完全未对接（重点标记）
+  bothNone:    VEHICLES.filter(v => v.gbStatus === "not_connected" && v.jtStatus === "not_connected").length,
+  // 任一在线
+  anyOnline:   VEHICLES.filter(v => v.gbStatus === "online" || v.jtStatus === "online").length,
 };
 
 // ── User roles for permission demo ────────────────────────