fix(acceptance): select booking agents by carrier

scripts/admin-test-env-modules/ocean-booking-fixture.mjs

@@ -52,6 +52,19 @@ export async function resolveOceanBookingMaster(context, module) {
   return master
 }
 
+export async function resolveOceanBookingAgent(context, module, carrierCode, options = {}) {
+  const normalizedCarrierCode = text(carrierCode).toUpperCase()
+  const response = await context.request('GET',
+    `/api/platform/v1/ocean-bookings/booking-agents?carrierCode=${encodeURIComponent(normalizedCarrierCode)}`)
+  const candidates = context.apiSuccess(module, '按船司读取可用订舱代理', response,
+    `carrierCode=${normalizedCarrierCode}`, options)
+  const selected = (Array.isArray(candidates) ? candidates : []).find((item) =>
+    text(item?.supplierId) && text(item?.name))
+  context.assert(module, '订舱代理已由服务端按船司关联过滤', response,
+    Boolean(selected), `carrierCode=${normalizedCarrierCode}`, options)
+  return selected ? { id: text(selected.supplierId), name: text(selected.name) } : null
+}
+
 export function oceanBookingDraft(context, suffix, master, labels = {}) {
   const { channelName: _readOnlyChannelName, warehouseName: _readOnlyWarehouseName, ...writableMaster } = master
   const normalizedSuffix = text(suffix).replace(/[^A-Za-z0-9]/g, '').slice(-32) || 'BOOKING'