[Bug]:自定义mcpServer，如果ToolsConfig里没有allow mcpserver里的工具，mcpserver里的工具将不可用

**Describe the bug**
注册自定义的mcpServer，里面的工具并没有像[文档](https://java.agentscope.io/v2/zh/docs/building-blocks/tool.html#mcp)描述的那样被重命名为mcp__{server_name}__{tool_name}。如果io.agentscope.harness.agent.tools.ToolsConfig里的allow没有包含mcpServer里的工具的名称，mcpServer里的工具将不可用

**To Reproduce**
Steps to reproduce the behavior:
```
static void main() {
ToolsConfig toolsConfig = new ToolsConfig();
toolsConfig.setAllow(List.of());
toolsConfig.setMcpServers(JsonUtil.fromJson("""
{"test":{
"transport":"streamable-http",
"url":"http://localhost:8089/query",
"enableTools":["getTime","listHoliday","getCourseOutline","searchCourseByName","searchEmp","queryDriver","queryMenu","getCourseDetail"]
}}
""", new TypeReference>() {
}));
t(toolsConfig);

toolsConfig.setAllow(List.of("list_files"));
t(toolsConfig);

toolsConfig.setAllow(List.of("list_files", "searchCourseByName"));
t(toolsConfig);
}

private static void t(ToolsConfig toolsConfig) {
HarnessAgent agent =
HarnessAgent.builder()
.name("HttpMcpAgent")
.sysPrompt("You are a helpful assistant with access to tools via MCP over HTTP.")
.model(DashScopeChatModel.builder()
.apiKey("kkk")
.modelName("qwen-max")
.stream(true)
.build())
.toolsConfig(toolsConfig)
.build();
System.out.println(agent.getToolkit().getToolNames());
}
```
输出：[agent_send, getTime, memory_search, queryDriver, queryMenu, task_cancel, grep_files, memory_get, edit_file, write_file, getCourseOutline, agent_list, task_list, read_file, session_search, list_files, getCourseDetail, searchCourseByName, task_output, memory_save, glob_files, agent_spawn, execute, wait_async_results, session_list, listHoliday, searchEmp, session_history]
[list_files]
[list_files, searchCourseByName]

**Expected behavior**
按照文档所述对工具重命名，且该mcpServer允许的工具列表按io.agentscope.harness.agent.tools.McpServerConfig#enableTools的配置来

**Environment (please complete the following information):**
- AgentScope-Java Version: 2.0
- Java Version: 25
- OS: windows