feat(firstleg): add private warehouse delivery fee

firstleg/src/main/resources/openapi/fba-pricing-v1.yaml

@@ -184,7 +184,7 @@ paths:
       responses: {'200': {description: 成功或业务失败, content: {application/json: {schema: {$ref: '#/components/schemas/InboundFeeDetailListApiResponse'}}}}, '403': {description: 无权限}}
     post:
       summary: 新增 MANUAL 其他费用
-      description: 只允许创建 MANUAL 来源；FBA_PRICING 由系统从 fl_inbound_fee 派生。
+      description: 只允许创建 MANUAL 来源；FBA_PRICING 由系统从 fl_inbound_fee 派生。费用项目 PRIVATE_LAST_MILE_DELIVERY 是独立的私人仓尾程派送费，仅 destinationType=PRIVATE 的入库单可创建；服务端按稳定 feeCode 校验，不按中文名称判断。
       parameters: [{$ref: '#/components/parameters/AccountId'}, {$ref: '#/components/parameters/InboundId'}]
       requestBody: {required: true, content: {application/json: {schema: {$ref: '#/components/schemas/InboundFeeDetailSaveRequest'}}}}
       responses: {'200': {description: 成功或业务失败, content: {application/json: {schema: {$ref: '#/components/schemas/InboundFeeDetailApiResponse'}}}}, '403': {description: 无权限}}