feat: 打手抢单大厅默认关闭假单展示，保留开关可恢复

通过 FAKE_GRAB_ORDER_POOL_ENABLED 控制，False 时仅返回真实订单，后台假单管理功能不变。

Co-authored-by: Cursor <cursoragent@cursor.com>

a_long_dianjing/settings.py

@@ -363,6 +363,8 @@ CELERY_TASK_QUEUES = {
 # ==================== 定时任务时间配置 ====================
 # 订单超时自动结算（Celery process_expired_order / check_order_expire_task）总开关：False=彻底关闭
 ORDER_AUTO_SETTLEMENT_ENABLED = False
+# 打手抢单大厅假单展示：False=仅返回真实订单（后台假单管理仍可用；改 True 可恢复假单池）
+FAKE_GRAB_ORDER_POOL_ENABLED = False
 ORDER_EXPIRE_SECONDS = 48 * 60 * 60  # 48小时 = 172800秒（开关关闭时不生效）
 DAILY_TASK_HOUR = 0
 DAILY_TASK_MINUTE = 30

orders/views/dashou.py

@@ -97,10 +97,12 @@ class DashouDingdanHuoquView(APIView):
 
     def post(self, request):
         try:
+            from django.conf import settings
             from orders.services.fake_order_pool import (
                 dashou_should_use_fake_pool,
                 build_fake_order_pool_response,
             )
+            if getattr(settings, 'FAKE_GRAB_ORDER_POOL_ENABLED', False):
                 if dashou_should_use_fake_pool(request.user):
                     return build_fake_order_pool_response(request)