McpServerToolCreateOptions miss MarshalResult option.

Inizia da McpServerToolCreateOptions, AIFunctionFactoryOptions, McpServerTool.Create, DeriveOptions e CreateAIFunctionFactoryOptions per tracciare come fluiscono le impostazioni di creazione. Aggiungi un modo supportato per configurare MarshalResult tramite le opzioni di creazione dello strumento, quindi verifica che il callback configurato raggiunga AIFunctionFactoryOptions senza reflection.

Is your feature request related to a problem? Please describe.
i need MarshalResult for AIFunctionFactoryOptions, but the CreateAIFunctionFactoryOptions assign the MarshalResult=new ValueTask(result).
i without any solution to reset it, i just can to create a AIFunction,then use the AIFunction to create McpServerTool.

but i will loss many settings from DeriveOptions and CreateAIFunctionFactoryOptions(private methods).

Describe the solution you'd like
please add a MarhsalResult option in McpServerToolCreateOptions, then i can initialize the AIFunctionFactoryOptions.MarshalResult.

or add a Action< AIFunctionFactoryOptions > initailizeAIFunctionOptions, then call after CreateAIFunctionFactoryOptions, give me a chance to update the aifunction options.

        public new static AIFunctionMcpServerResource Create(MethodInfo method, object? target, McpServerResourceCreateOptions? options
            , Action<AIFunctionFactoryOptions> initializeAIFunctionFactoryOptions = null)
        {
            Throw.IfNull(method, "method");
            options = DeriveOptions(method, options);

            var aioptions = CreateAIFunctionFactoryOptions(method, options);
            initializeAIFunctionFactoryOptions?.Invoke(aioptions);

            return Create(AIFunctionFactory.Create(method, target, aioptions), options);
        }
        public new static AIFunctionMcpServerTool Create(MethodInfo method, object? target, McpServerToolCreateOptions? options
            , Action<AIFunctionFactoryOptions> initializeAIFunctionFactoryOptions = null)
        {
            Throw.IfNull(method, "method");
            options = DeriveOptions(method, options);

            var aioptions = CreateAIFunctionFactoryOptions(method, options);
            initializeAIFunctionFactoryOptions?.Invoke(aioptions);

            return Create(AIFunctionFactory.Create(method, target, aioptions), options);
        }`
        public new static AIFunctionMcpServerPrompt Create(MethodInfo method, object? target, McpServerPromptCreateOptions? options
            , Action<AIFunctionFactoryOptions> initializeAIFunctionFactoryOptions = null)
        {
            Throw.IfNull(method, "method");
            options = DeriveOptions(method, options);

            var aioptions = CreateAIFunctionFactoryOptions(method, options);
            initializeAIFunctionFactoryOptions?.Invoke(aioptions);

            return Create(AIFunctionFactory.Create(method, target, aioptions), options);
        }

Describe alternatives you've considered
currently , i just can use reflection to invoke DeriveOptions and CreateAIFunctionFactoryOptions,
but this was not stable in the future version. please add a standard MarshalResult options for my feature.

                    var createoptions = new McpServerToolCreateOptions()
                    {
                        Name = mcpname,
                        SerializerOptions = serializeroptions,
                    };
                    createoptions = (McpServerToolCreateOptions)DummyInstance.Value.Tool_DeriveOptions.Invoke(null, [mcpmethod, createoptions]);

                    var aifuncoptions = (AIFunctionFactoryOptions)DummyInstance.Value.Tool_CreateAIFunctionFactoryOptions.Invoke(null, [mcpmethod, createoptions]);
                    aifuncoptions.MarshalResult = OnToolMarshalResult;

                    var aifunc = AIFunctionFactory.Create(mcpmethod, instance, aifuncoptions);
                    var tool = McpServerTool.Create(aifunc, createoptions);
                    log.Info($"McpTool 已建立 - tool:{tool}。\r\n{mcpmethod}");

                    tools.Add(tool);