请提供需要提交的变更内容或简要说明（例如：做了什么改动、涉及哪些模块）。

我将按你给定的规范生成对应的提交标题和说明。

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Mcp/HttpRequestTool.cs

@@ -0,0 +1,143 @@
+using System.ComponentModel;
+using System.Text;
+using System.Text.Json;
+using Microsoft.Extensions.Logging;
+using Volo.Abp.DependencyInjection;
+using Yi.Framework.AiHub.Domain.Shared.Attributes;
+
+namespace Yi.Framework.AiHub.Domain.Mcp;
+
+[YiAgentTool]
+public class HttpRequestTool : ISingletonDependency
+{
+    private readonly IHttpClientFactory _httpClientFactory;
+    private readonly ILogger<HttpRequestTool> _logger;
+
+    public HttpRequestTool(
+        IHttpClientFactory httpClientFactory,
+        ILogger<HttpRequestTool> logger)
+    {
+        _httpClientFactory = httpClientFactory;
+        _logger = logger;
+    }
+
+    [YiAgentTool("HTTP请求"), DisplayName("HttpRequest"),
+     Description("发送HTTP请求，支持GET/POST/PUT/DELETE等方法，获取指定URL的响应内容")]
+    public async Task<string> HttpRequest(
+        [Description("请求的URL地址")] string url,
+        [Description("HTTP方法：GET、POST、PUT、DELETE等")] string method = "GET",
+        [Description("请求体内容（JSON字符串），POST/PUT时使用")] string? body = null,
+        [Description("请求头，格式：key1:value1,key2:value2")] string? headers = null)
+    {
+        if (string.IsNullOrWhiteSpace(url))
+        {
+            return "URL不能为空";
+        }
+
+        if (string.IsNullOrWhiteSpace(method))
+        {
+            method = "GET";
+        }
+
+        try
+        {
+            var client = _httpClientFactory.CreateClient();
+            var request = new HttpRequestMessage(new HttpMethod(method.ToUpper()), url);
+
+            // 添加请求体
+            if (!string.IsNullOrWhiteSpace(body))
+            {
+                request.Content = new StringContent(body, Encoding.UTF8, "application/json");
+            }
+
+            // 添加自定义请求头
+            if (!string.IsNullOrWhiteSpace(headers))
+            {
+                AddHeaders(request, headers);
+            }
+
+            var response = await client.SendAsync(request);
+            return await FormatResponse(response);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "HTTP {Method}请求失败: {Url}", method, url);
+            return $"请求失败: {ex.Message}";
+        }
+    }
+
+    /// <summary>
+    /// 添加请求头
+    /// </summary>
+    private void AddHeaders(HttpRequestMessage request, string headers)
+    {
+        var headerPairs = headers.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        foreach (var pair in headerPairs)
+        {
+            var parts = pair.Split(':', 2, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+            if (parts.Length == 2)
+            {
+                request.Headers.TryAddWithoutValidation(parts[0], parts[1]);
+            }
+        }
+    }
+
+    /// <summary>
+    /// 格式化响应结果
+    /// </summary>
+    private async Task<string> FormatResponse(HttpResponseMessage response)
+    {
+        var sb = new StringBuilder();
+        sb.AppendLine($"状态码: {(int)response.StatusCode} {response.StatusCode}");
+        sb.AppendLine($"Content-Type: {response.Content.Headers.ContentType?.ToString() ?? "未知"}");
+        sb.AppendLine();
+
+        var content = await response.Content.ReadAsStringAsync();
+        if (string.IsNullOrWhiteSpace(content))
+        {
+            sb.AppendLine("响应内容为空");
+        }
+        else
+        {
+            // 尝试格式化JSON
+            if (IsJsonContentType(response.Content.Headers.ContentType?.MediaType))
+            {
+                try
+                {
+                    var jsonDoc = JsonDocument.Parse(content);
+                    sb.AppendLine("响应内容（JSON格式化）：");
+                    sb.AppendLine(JsonSerializer.Serialize(jsonDoc, new JsonSerializerOptions
+                    {
+                        WriteIndented = true
+                    }));
+                }
+                catch
+                {
+                    sb.AppendLine("响应内容：");
+                    sb.AppendLine(content);
+                }
+            }
+            else
+            {
+                sb.AppendLine("响应内容：");
+                sb.AppendLine(content);
+            }
+        }
+
+        return sb.ToString();
+    }
+
+    /// <summary>
+    /// 判断是否为JSON内容类型
+    /// </summary>
+    private bool IsJsonContentType(string? contentType)
+    {
+        if (string.IsNullOrWhiteSpace(contentType))
+        {
+            return false;
+        }
+
+        return contentType.Contains("application/json", StringComparison.OrdinalIgnoreCase) ||
+               contentType.Contains("text/json", StringComparison.OrdinalIgnoreCase);
+    }
+}