关于商店购买和支付的问题

1.新用户打开网页第一次点商店只有兑换项没有商品页项需要刷新页面才有（老问题一直未解决）
2.支付完会弹出支付成功 如果不点就不会回调支付信息 导致用户付款成功但实际功能未开通成功

Reproduce both reported flows: open the store as a new user and complete a payment, checking the first-load product view and whether payment completion is processed without dismissing the success prompt. Trace the store entry point and payment callback handling; done means products appear on the initial load and successful payments activate the purchased functionality without requiring a click.

Written by the indexing model from the issue text.