fix(shop): 修复订单确认页面数量输入组件逻辑

- 调整步长设置逻辑，根据最小购买数量动态设置步长值
- 移除票据模板激活时的禁用条件限制
- 简化数量输入框的禁用状态判断逻辑

src/shop/orderConfirm/index.tsx

@@ -858,12 +858,9 @@ const OrderConfirm = () => {
 	                      value={quantity}
 	                      min={isTicketTemplateActive ? minBuyQty : 1}
 	                      max={goods.stock || 999}
-	                      step={10}
+	                      step={minBuyQty === 1 ? 1 : 10}
 	                      readOnly
-	                      disabled={
-	                        (((goods.canBuyNumber ?? 0) !== 0) && !isTicketTemplateActive) ||
-	                        (isTicketTemplateActive && minBuyQty === 1)
-	                      }
+                        disabled={((goods.canBuyNumber ?? 0) !== 0) && !isTicketTemplateActive}
 	                      onChange={handleQuantityChange}
 	                    />
 	                  </ConfigProvider>