可否增加获取路由所有参数的方法？

例如有路由：`path/{paramA}/{paramB}`，需求是想获取所有的参数，即`paramA`和`paramB`。

但目前只有`route`方法，只能获取单个路由参数，对应代码如下：
```php
/**
* Retrieve the data from route parameters.
*/
public function route(string $key, mixed $default = null): mixed
{
/** @var null|Dispatched $route */
$route = $this->getAttribute(Dispatched::class);
if (is_null($route)) {
return $default;
}
return array_key_exists($key, $route->params) ? $route->params[$key] : $default;
}
```

能否新增`routes()`方法，获取路由的所有参数？

Start from the request class containing the shown route() method and inspect how the Dispatched route attribute exposes its params. Add the requested routes() behavior so all route parameters are returned, then verify that it preserves the existing handling when no dispatched route is available.

由索引模型根据 Issue 内容生成。