fix(delivery): expose nullable actual signed quantity to clients

src/modules/order-management/api/deliveryOrders.ts

@@ -49,6 +49,7 @@ export interface DeliveryRow {
   driverName: string | null
   palletCount: number
   packageCount: number
+  signedPackages: number | null
   totalWeightKg: number | null
   totalVolumeCbm: number | null
   plannedDeliveryAt: string

src/modules/order-management/deliveryOrders.test.mjs

@@ -18,6 +18,18 @@ async function importTypeScriptModule(source) {
   return import(`data:text/javascript;base64,${Buffer.from(compiled).toString('base64')}`)
 }
 
+for (const signedPackages of [null, 0, 3]) test(`preserves actual signed quantity ${signedPackages} in merchant list and detail`, async () => {
+  const api = await importTypeScriptModule(apiSource.replace(
+    "import { apiBlobRequest, apiRequest } from '@/api/http'",
+    `const apiBlobRequest = async () => new Blob([])
+     const order = { deliveryNo: 'DL-1', packageCount: 9, signedPackages: ${JSON.stringify(signedPackages)} }
+     const apiRequest = async (config) => config.url.endsWith('/DL-1')
+       ? { order, skus: [], fees: [] } : { records: [order], page: 1, size: 20, total: 1, pages: 1 }`,
+  ))
+  assert.equal((await api.listDeliveryOrders({ page: 1, size: 20 })).records[0].signedPackages, signedPackages)
+  assert.equal((await api.getDeliveryOrder('DL-1')).signedPackages, signedPackages)
+})
+
 test('uses only authenticated merchant delivery endpoints without customer scope or mock fallback', () => {
   assert.match(apiSource, /method: 'GET'[\s\S]*url: '\/merchant\/v1\/last-leg\/delivery-orders'/)
   assert.match(apiSource, /delivery-orders\/\$\{encodeURIComponent\(deliveryNo\)\}/)