fix: 抢单押金校验计入提现冻结中押金

押金提现申请后余额已扣，仅抢单接口把审核中/待收款冻结额加回可用；提现与换人等其它场景仍只认实际余额。

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

orders/views/dashou.py

@@ -542,7 +542,7 @@ class QiangdanView(APIView):
         if order.GrabRequirement == 1:
             return self._validate_huiyuan_requirement(order, dashou_yonghuid)
         elif order.GrabRequirement == 2:
-            return self._validate_yajin_requirement(order, dashou_profile)
+            return self._validate_yajin_requirement(order, dashou_profile, dashou_yonghuid)
         return {'success': True, 'message': '验证通过'}
 
     def _validate_huiyuan_requirement(self, order, dashou_yonghuid):
@@ -567,11 +567,26 @@ class QiangdanView(APIView):
             return {'success': True, 'message': '会员验证通过'}
         return {'success': False, 'message': '未开通对应会员或会员已过期，无法抢此订单'}
 
-    def _validate_yajin_requirement(self, order, dashou_profile):
+    def _validate_yajin_requirement(self, order, dashou_profile, dashou_yonghuid=None):
+        """
+        押金抢单：余额 + 提现冻结中押金均可用于抢单门槛。
+        提现/后台换人等其它场景仍只认实际 yajin 余额。
+        """
+        from users.tixian_shenhe_services import pending_yajin_withdraw_frozen_amount
+
         yajin_required = order.CommissionReq or 0
-        dashou_yajin = dashou_profile.yajin or 0
-        if dashou_yajin < yajin_required:
-            return {'success': False, 'message': f'押金不足，需要{yajin_required}元，当前有{dashou_yajin}元'}
+        balance = dashou_profile.yajin or 0
+        yonghuid = dashou_yonghuid or getattr(
+            getattr(dashou_profile, 'user', None), 'UserUID', None
+        )
+        frozen = pending_yajin_withdraw_frozen_amount(yonghuid) if yonghuid else Decimal('0')
+        effective = Decimal(str(balance)) + Decimal(str(frozen))
+        required = Decimal(str(yajin_required))
+        if effective < required:
+            return {
+                'success': False,
+                'message': f'押金不足，需要{required}元，当前可用{effective}元',
+            }
         return {'success': True, 'message': '押金验证通过'}
 
     def _execute_qiangdan(self, order, dashou_profile, dashou_yonghuid):