feat(platform): summarize missing vehicle sources

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

@@ -65,6 +65,14 @@ export function Vehicles({
       { label: '暂无来源车辆', value: (summary?.noDataVehicles ?? 0).toLocaleString(), filters: { serviceStatus: 'no_data' } },
       { label: '待绑定', value: (summary?.unboundVehicles ?? 0).toLocaleString(), filters: { bindingStatus: 'unbound' } }
     ];
+    for (const source of summary?.missingSources ?? []) {
+      if (source.count <= 0) continue;
+      items.push({
+        label: `缺 ${source.protocol}`,
+        value: source.count.toLocaleString(),
+        filters: { missingProtocol: source.protocol }
+      });
+    }
     return items;
   }, [pagination.total, summary]);