docs: add McpServerOptionsSetup code comment (#77)

Author: JaneConan

src/ModelContextProtocol/Configuration/McpServerOptionsSetup.cs

@@ -6,19 +6,31 @@
 
 namespace ModelContextProtocol.Configuration;
 
+/// <summary>
+/// Configures the McpServerOptions using provided server handlers.
+/// </summary>
+/// <param name="serverHandlers">The server handlers configuration options.</param>
 internal sealed class McpServerOptionsSetup(IOptions<McpServerHandlers> serverHandlers) : IConfigureOptions<McpServerOptions>
 {
+    /// <summary>
+    /// Configures the given McpServerOptions instance by setting server information
+    /// and applying custom server handlers.
+    /// </summary>
+    /// <param name="options">The options instance to be configured.</param>
     public void Configure(McpServerOptions options)
     {
         Throw.IfNull(options);
 
         var assemblyName = Assembly.GetEntryAssembly()?.GetName();
+
+        // Set server information based on the entry assembly
         options.ServerInfo = new Implementation
         {
             Name = assemblyName?.Name ?? "McpServer",
             Version = assemblyName?.Version?.ToString() ?? "1.0.0",
         };
 
+        // Apply custom server handlers
         serverHandlers.Value.OverwriteWithSetHandlers(options);
     }
 }