Fix refund pending finalization gaps

backend/internal/handler/admin/payment_handler.go

@@ -257,6 +257,22 @@ func (h *PaymentHandler) ProcessRefund(c *gin.Context) {
 	response.Success(c, result)
 }
 
+// QueryAndFinalizeRefund queries the provider refund status and finalizes a pending refund.
+// POST /api/v1/admin/payment/orders/:id/refund/query
+func (h *PaymentHandler) QueryAndFinalizeRefund(c *gin.Context) {
+	orderID, ok := parseIDParam(c, "id")
+	if !ok {
+		return
+	}
+
+	result, err := h.paymentService.QueryAndFinalizeRefund(c.Request.Context(), orderID)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+	response.Success(c, result)
+}
+
 // --- Subscription Plans ---
 
 // ListPlans returns all subscription plans.