add mcp http setting

Author: Jicheng Lu

src/Infrastructure/BotSharp.Abstraction/MCP/Models/McpServerConfigModel.cs

@@ -28,10 +28,19 @@ public class McpServerConfigModel
     public string? Description { get; set; }
 
     public McpSseServerConfig? SseConfig { get; set; }
+    public McpHttpServerConfig? HttpConfig { get; set; }
     public McpStdioServerConfig? StdioConfig { get; set; }
 }
 
-public class McpSseServerConfig
+public class McpSseServerConfig : McpHttpServerConfigBase
+{
+}
+
+public class McpHttpServerConfig : McpHttpServerConfigBase
+{
+}
+
+public class McpHttpServerConfigBase
 {
     public string EndPoint { get; set; } = null!;
     public TimeSpan ConnectionTimeout { get; init; } = TimeSpan.FromSeconds(30);
@@ -42,6 +51,6 @@ public class McpStdioServerConfig
 {
     public string Command { get; set; } = null!;
     public IList<string>? Arguments { get; set; }
-    public Dictionary<string, string>? EnvironmentVariables { get; set; }
+    public Dictionary<string, string?>? EnvironmentVariables { get; set; }
     public TimeSpan ShutdownTimeout { get; set; } = TimeSpan.FromSeconds(5);
 }

src/Infrastructure/BotSharp.Core/MCP/Managers/McpClientManager.cs

@@ -28,7 +28,17 @@ public McpClientManager(
             }
 
             IClientTransport? transport = null;
-            if (config.SseConfig != null)
+            if (config.HttpConfig != null)
+            {
+                transport = new HttpClientTransport(new HttpClientTransportOptions
+                {
+                    Name = config.Name,
+                    Endpoint = new Uri(config.HttpConfig.EndPoint),
+                    AdditionalHeaders = config.HttpConfig.AdditionalHeaders,
+                    ConnectionTimeout = config.HttpConfig.ConnectionTimeout
+                });
+            }
+            else if (config.SseConfig != null)
             {
                 transport = new HttpClientTransport(new HttpClientTransportOptions
                 {