fix(admin): validate explicit booking container limits

src/modules/ocean-bookings/containerRequirements.ts

@@ -0,0 +1,10 @@
+import type { OceanBookingContainer } from './types'
+
+export function createBlankContainerRequirement(): OceanBookingContainer {
+  return { containerType: '40HC', containerKind: 'FCL', capacityCbm: null, maxWeightKg: null, quantity: 1 }
+}
+
+export function containerRequirementError(requirements: OceanBookingContainer[]) {
+  const invalid = requirements.find((item) => !(Number(item.capacityCbm) > 0) || !(Number(item.maxWeightKg) > 0) || !(Number(item.quantity) > 0))
+  return invalid ? `箱型 ${invalid.containerType || '未命名'} 的容量、限重和数量必须大于 0，请补充后再提交` : null
+}