fix: update MCP server base URL to port 5270 and suppress logging

Point API client at the deployed service port and clear logging
providers to prevent interference with MCP stdio transport.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CutList.Mcp/Program.cs

@@ -1,6 +1,7 @@
 using CutList.Mcp;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
 using ModelContextProtocol.Server;
 
 var builder = Host.CreateApplicationBuilder(args);
@@ -8,9 +9,12 @@ var builder = Host.CreateApplicationBuilder(args);
 // Register HttpClient for API calls to CutList.Web
 builder.Services.AddHttpClient<ApiClient>(client =>
 {
-    client.BaseAddress = new Uri("http://localhost:5009");
+    client.BaseAddress = new Uri("http://localhost:5270");
 });
 
+// Suppress all logging so it doesn't interfere with MCP stdio transport
+builder.Logging.ClearProviders();
+
 builder.Services
     .AddMcpServer()
     .WithStdioServerTransport()