feat(platform): expose missing sources per vehicle

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

@@ -125,6 +125,17 @@ export function Vehicles({
           </Space>
         )
       },
+      {
+        title: '缺失来源',
+        width: 220,
+        render: (_: unknown, row: VehicleCoverageRow) => (
+          <Space spacing={4} wrap>
+            {(row.missingProtocols ?? []).length > 0
+              ? row.missingProtocols.map((protocol) => <Tag key={protocol} color="orange">缺 {protocol}</Tag>)
+              : <Tag color="green">完整</Tag>}
+          </Space>
+        )
+      },
       { title: '证据覆盖', width: 120, render: (_: unknown, row: VehicleCoverageRow) => sourceEvidenceText(row) },
       { title: '在线', width: 90, render: (_: unknown, row: VehicleCoverageRow) => <StatusTag status={row.online ? 'ok' : 'offline'} /> },
       { title: '最后在线', dataIndex: 'lastSeen', width: 170 },