fix(fleet): preserve unknown commercial facts for pooled freight

lastleg-service/src/main/resources/openapi/overseas-business-v1.yaml

@@ -3362,7 +3362,7 @@ components:
         transportType: { type: string, nullable: true }
         origin: { type: string }
         destination: { type: string }
-        containerType: { type: string, enum: [40GP, 40HQ, 45HQ], description: 平台统一柜型 }
+        containerType: { type: string, nullable: true, enum: [40GP, 40HQ, 45HQ], description: 已知时为平台统一柜型；池询价未提供时未知，不默认40HQ }
         palletCount: { type: integer }
         packageCount: { type: integer }
         receivedPalletCount: { type: integer }
@@ -3411,17 +3411,17 @@ components:
     LooseboardSummary:
       type: object
       description: 散板商业主单摘要；池来源附带同客户fleetArrangement，独立订单该字段为null。池来源不创建第二张占位尾程来源。
-      required: [id, customerId, orderNo, transportMode, palletRequired, transportType, origin, destination, packageCount, totalWeightKg, totalVolumeCbm, status, version, createdAt, updatedAt]
+      required: [id, customerId, orderNo, transportMode, transportType, origin, destination, packageCount, totalWeightKg, totalVolumeCbm, status, version, createdAt, updatedAt]
       properties:
         id: { type: string, pattern: '^[0-9]+$' }
         customerId: { type: string }
         orderNo: { type: string }
         transportMode: { type: string, enum: [SHARED_TRUCK, PRIORITY_CONSOLIDATION] }
-        palletRequired: { type: string, enum: [YES, NO] }
+        palletRequired: { type: string, nullable: true, enum: [YES, NO], description: 是否委托打盘服务；池询价未提供时未知，不从实托数或托位推断YES }
         transportType: { type: string }
         origin: { type: string }
         destination: { type: string }
-        containerType: { type: string, enum: [40GP, 40HQ, 45HQ], description: 平台统一柜型 }
+        containerType: { type: string, nullable: true, enum: [40GP, 40HQ, 45HQ], description: 已知时为平台统一柜型；池询价未提供时未知，不默认40HQ }
         packageCount: { type: integer }
         totalWeightKg: { type: number }
         totalVolumeCbm: { type: number }