优化支付退款钱包链路

backend/internal/modules/payment/handler.go

@@ -99,6 +99,19 @@ func (h *Handler) WalletRechargeQuery(c *gin.Context) {
 	response.OK(c, item)
 }
 
+func (h *Handler) QueryRefundStatus(c *gin.Context) {
+	orderID, ok := parseID(c)
+	if !ok {
+		return
+	}
+	item, err := h.service.QueryRefundStatus(orderID)
+	if err != nil {
+		writePaymentError(c, err)
+		return
+	}
+	response.OK(c, item)
+}
+
 func (h *Handler) LeshuaNotify(c *gin.Context) {
 	body, err := io.ReadAll(io.LimitReader(c.Request.Body, 1<<20))
 	if err != nil {
@@ -157,6 +170,10 @@ func writePaymentError(c *gin.Context, err error) {
 		response.Error(c, http.StatusBadGateway, "payment_unavailable", "支付渠道暂不可用")
 	case errors.Is(err, ErrPaymentCannotStart), errors.Is(err, order.ErrOrderCannotPay):
 		response.Error(c, http.StatusConflict, "payment_cannot_start", "当前订单不能支付")
+	case errors.Is(err, ErrRefundCannotStart):
+		response.Error(c, http.StatusConflict, "refund_cannot_start", "当前订单不能退款")
+	case errors.Is(err, ErrWalletRechargeDisabled):
+		response.Error(c, http.StatusGone, "wallet_recharge_disabled", "钱包充值已关闭")
 	case errors.Is(err, ErrPaymentVerifyFailed):
 		response.Error(c, http.StatusForbidden, "payment_verify_failed", "支付通知验签失败")
 	case errors.Is(err, ErrPaymentNotFound), errors.Is(err, gorm.ErrRecordNotFound), order.IsNotFound(err):