如何从WebAPI发送IAsyncEnumerator，并在C# 8+中通过HttpClient流式传输数据？

[ApiController]
[Route("api/[controller]")]
public class StreamController : ControllerBase
{
    [HttpGet("stream")]
    public async IAsyncEnumerable<string> GetStreamData()
    {
        for (int i = 0; i < 10; i++)
        {
            await Task.Delay(1000); // 模拟耗时操作
            yield return $"Data chunk {i}";
        }
    }
}

class Program
{
    static async Task Main(string[] args)
    {
        using var client = new HttpClient();
        var response = await client.GetAsync("http://localhost:5000/api/stream/stream", HttpCompletionOption.ResponseHeadersRead);

        if (response.IsSuccessStatusCode)
        {
            using var stream = await response.Content.ReadAsStreamAsync();
            await foreach (var data in ProcessStreamAsync(stream))
            {
                Console.WriteLine(data);
            }
        }
        else
        {
            Console.WriteLine("Failed to get stream data.");
        }
    }

    private static async IAsyncEnumerable<string> ProcessStreamAsync(Stream stream)
    {
        using var reader = new StreamReader(stream);
        while (!reader.EndOfStream)
        {
            yield return await reader.ReadLineAsync();
        }
    }
}