fix: 生成促销码改用script+fetch POST传参，绕过urlwidget/PopupWindow参数传递问题

json/discount_marketing_list.json

@@ -77,22 +77,8 @@
 			{
 				"wid": "self",
 				"event": "gen_promo",
-				"actiontype": "urlwidget",
-				"target": "PopupWindow",
-				"popup_options": {
-					"title": "生成促销码",
-					"cwidth": 16,
-					"cheight": 10
-				},
-				"params_mapping": {
-					"mapping": {
-						"id": "marketing_id"
-					},
-					"need_other": false
-				},
-				"options": {
-					"url": "{{entire_url('../api/gen_promo_from_mkt.dspy')}}"
-				}
+				"actiontype": "script",
+				"script": "(function(){var id='${id}$';var x=new XMLHttpRequest();x.open('POST','{{entire_url('../api/gen_promo_from_mkt.dspy')}}',true);x.setRequestHeader('Content-Type','application/x-www-form-urlencoded');x.onload=function(){try{var d=JSON.parse(x.responseText);if(d.widgettype==='Message'){var m=new bricks.Message(d.options);m.show();}else{alert(d.options.message||x.responseText);}}catch(e){alert(x.responseText);}};x.send('marketing_id='+encodeURIComponent(id));})();"
 			}
 		],
 		"new_data_url": "{{entire_url('/discount/api/marketing_create.dspy')}}",
@@ -100,4 +86,4 @@
 		"delete_data_url": "{{entire_url('/discount/api/marketing_delete.dspy')}}",
 		"logined_userorgid": "resellerid"
 	}
-}
+}