feat(appointments): expose destination warehouse options

lastleg-service/src/main/resources/openapi/appointment-planning-v1.yaml

@@ -6,6 +6,26 @@ info:
 security:
   - bearerAuth: []
 paths:
+  /api/platform/v1/last-leg/appointment-planning/cargo/destinations:
+    get:
+      operationId: listAppointmentCargoDestinations
+      summary: 读取预约货物查询的目的FBA仓选项
+      description: >-
+        仅平台；同时要求platform:appointment:list与platform:overseas-warehouse:last-mile-order:list。
+        与货物分页共用权威启用美国FBA目录，返回去重、按仓码排序的完整选项，不受货物当前分页或关键词限制。
+        不增加仓库主档读取权限；目录失败返回503，不当作空选项。
+      responses:
+        '200':
+          description: 业务响应；data为目的FBA仓码数组
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  code: {type: string}
+                  data: {type: array, items: {type: string}, example: [ABE4, ONT8]}
+        '403': {description: 非平台或缺少任一读取权限}
+        '503': {description: 权威目录不可用}
   /api/platform/v1/last-leg/appointment-planning/sources/resolve-order:
     get:
       operationId: resolveOrderAppointmentSource