fix(lastleg): unblock inbound plan handoff

lastleg-service/src/main/resources/db/lastleg.sql

@@ -35,6 +35,12 @@ CREATE TABLE IF NOT EXISTS ll_container_shipping_gate (
   KEY idx_ll_shipping_gate_version(container_booking_id,aggregate_version,node_sequence)
 ) ENGINE=InnoDB COMMENT='海外PDA柜号船节点收货资格快照';
 
+CREATE TABLE IF NOT EXISTS ll_order_no_daily_sequence (
+  business_date DATE NOT NULL COMMENT '业务日期（Asia/Shanghai）',
+  last_sequence INT NOT NULL COMMENT '当日已分配尾程单流水号',
+  PRIMARY KEY(business_date)
+) ENGINE=InnoDB COMMENT='尾程单号按日原子流水';
+
 CREATE TABLE IF NOT EXISTS ll_order (
   id BIGINT NOT NULL COMMENT '雪花 ID',
   order_no VARCHAR(32) NOT NULL COMMENT '尾程单号',

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

@@ -156,6 +156,22 @@ paths:
         - { name: createdFrom, in: query, schema: { type: string, format: date-time } }
         - { name: createdTo, in: query, schema: { type: string, format: date-time } }
       responses: { '200': { description: 统一 ApiResponse 包装的尾程订单分页；列表行 destinationType 为 FBA 或 OVERSEAS } }
+  /api/platform/v1/last-leg/inbound-plans/convert:
+    post:
+      summary: 平台生成入库计划
+      description: 权限 platform:overseas-warehouse:inbound-order:create；必须同时传入真实 customerId 与 orderId，服务端按该客户和订单 ID 锁定归属，缺失 customerId 返回 A0400。
+      security: [{ bearerAuth: [] }]
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              type: object
+              required: [customerId, orderId]
+              properties:
+                customerId: { type: string, pattern: '^[1-9][0-9]*$' }
+                orderId: { type: string, pattern: '^[1-9][0-9]*$' }
+      responses: { '200': { description: 统一 ApiResponse 包装的入库计划详情 } }
   /api/platform/v1/last-leg/dispatches:
     get:
       summary: 分页查询排车单