fix: close phase4 overseas acceptance gaps

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

@@ -6,20 +6,20 @@ paths:
   /api/pda/v1/last-leg/receiving-containers/candidates:
     get:
       summary: 查询当前客户待签收柜号
-      description: 权限 lastleg:pda:operate；客户与操作账号均从 PDA Token 获取，不接收 customerId。
+      description: 权限 lastleg:pda:operate；仅 PLATFORM WAREHOUSE_PICKER 可用，操作账号从 Token 获取，客户由所选柜业务事实唯一解析，不接收 customerId。
       security: [{ bearerAuth: [] }]
       responses: { '200': { description: 柜号候选及箱数进度, content: { application/json: { schema: { $ref: '#/components/schemas/ReceivingCandidateListApiResponse' } } } }, '403': { description: 缺少 PDA 操作权限 } }
   /api/pda/v1/last-leg/receiving-containers/{containerNo}:
     get:
       summary: 查询待签收柜号详情
-      description: 权限 lastleg:pda:operate；返回柜内全部入仓码、目的类型、目的仓、托数和实收进度。
+      description: 权限 lastleg:pda:operate；按柜号唯一解析客户并返回柜内全部入仓码、目的类型、目的仓、托数和实收进度。
       security: [{ bearerAuth: [] }]
       parameters: [{ name: containerNo, in: path, required: true, schema: { type: string } }]
       responses: { '200': { description: 柜号详情, content: { application/json: { schema: { $ref: '#/components/schemas/ReceivingSessionApiResponse' } } } }, '409': { description: 当前账号已锁定其他柜号 } }
   /api/pda/v1/last-leg/receiving-containers/{containerNo}/prepare:
     post:
       summary: 选择当前待签收柜号
-      description: 权限 lastleg:pda:operate；建立 WAIT_SIGN 会话并以账号、柜号双唯一键防止切柜或多人同时处理。
+      description: 权限 lastleg:pda:operate；建立 WAIT_SIGN 会话并以平台操作账号、柜号全局双唯一键防止切柜或多人同时处理。
       security: [{ bearerAuth: [] }]
       parameters: [{ name: containerNo, in: path, required: true, schema: { type: string } }]
       requestBody: { required: true, content: { application/json: { schema: { $ref: '#/components/schemas/ReceivingAction' } } } }