fix(wechat): use wx.tenpay.com/f2f for web payment, weixin:// is not browser-openable

wwwroot/recharge.dspy

@@ -1,18 +1,20 @@
 params_kw.amount = float(params_kw.amount)
 debug(f'recharge.dspy: {params_kw=}')
 try:
-	url = await create_payment(request, params_kw)
+	code_url = await create_payment(request, params_kw)
 	if params_kw.provider == 'transfer':
 		return {
 			"widgettype":"urlwidget",
 			"mode":"replace",
 			"target":"app.sage_main_content",
-			"options":{"url": url}
+			"options":{"url": code_url}
 		}
+	# weixin://wxpay/bizpayurl?pr=xxx → https://wx.tenpay.com/f2f?pr=xxx
+	pay_url = code_url.replace('weixin://wxpay/bizpayurl', 'https://wx.tenpay.com/f2f')
 	return {
 		"widgettype":"NewWindow",
 		"options":{
-			"url": url,
+			"url": pay_url,
 			"height": "100%",
 			"width":"100%"
 		}