fix: from discount.init import bind_customer, 绕过dspy bare function 查找失败

wwwroot/promote/index.dspy

@@ -2,13 +2,14 @@
 # 参数: code=促销码id 或 id=discount_qr id
 # 已登录: 直接绑定; 未登录: 提示登录/注册
 
+from discount.init import bind_customer, set_promote_discount
+
 code = params_kw.get('code', '')
 qr_id = params_kw.get('id', '')
 
 user = await get_user()
 
 if not user:
-    # 未登录 - 显示登录/注册引导
     back_url = ''
     if code:
         back_url = entire_url('./promote/index.dspy') + f'?code={code}'
@@ -54,7 +55,6 @@ if not user:
         ]
     }
 elif code:
-    # 已登录 + 促销码参数 - 绑定促销码
     try:
         bind_params = params_kw.copy()
         bind_params['promo_code_id'] = code
@@ -95,7 +95,6 @@ elif code:
             "options": {"title": "激活失败", "message": str(e), "type": "error"}
         }
 else:
-    # 已登录 + 折扣二维码参数 - 走旧流程
     ret = await set_promote_discount(request, params_kw)
     result = {
         "widgettype": "Message",