feat: 待付款续付 jixuzhifu，复用原单号且不误改支付状态

仅 Status=9 可续付；续付前渠道查单，已付走现有 fucha 履约；本接口不把未付标成已付。

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

orders/urls.py

@@ -1,7 +1,7 @@
 from django.urls import path
 from django.views.decorators.csrf import csrf_exempt
 from .views import CreateOrderView, WechatPayNotifyView, AlipayPayNotifyView, alipay_pay_page, \
-    PaymentFailView, PaymentVerifyView, DingdanHuoquView, DingdanXiangqingView, JiedanView, \
+    PaymentFailView, PaymentVerifyView, ContinuePayView, DingdanHuoquView, DingdanXiangqingView, JiedanView, \
     ShangpinLeixingView, ShangjiaPaifaView, ShangjiaDingdanHuoquView, ShangjiaJiesuanView, \
     ShangjiaDingdanXiangqingView, ShangjiaChufaShenqingView, ShangjiaTuikuanShenqingView, \
     ShangjiaChexiaoView, DashouDingdanHuoquView, ShangpinLeixingHuoquView, QiangdanView, \
@@ -17,6 +17,7 @@ from jituan.services.fubei_notify import FubeiPayNotifyView
 
 urlpatterns = [
     path('xiadan', CreateOrderView.as_view(), name='下单订单生成接口'),
+    path('jixuzhifu', ContinuePayView.as_view(), name='待付款继续支付'),
     #path('pay-notify/', WechatPayNotifyView.as_view(), name='老板下单微信支付回调'),
     path('pay-notify/', csrf_exempt(WechatPayNotifyView.as_view()), name='老板下单微信支付回调'),
     path('alipay-notify/', csrf_exempt(AlipayPayNotifyView.as_view()), name='老板下单支付宝支付回调'),