SDK 中Conversation 没有name属性，api返回的实体是有的，可否补充一下

在调用 Conversations API 时，接口返回的 Conversation 实体包含 name 字段，但当前 SDK 的 Conversation 模型中未定义该属性，导致无法通过 SDK 直接访问对话名称信息。

期望的 SDK 模型：
class Conversation {
id: string;
name: string; // ✅ 希望补充此属性
// ... 其他字段
}

Start by locating the Java SDK's Conversation model used by the Conversations API and inspect its existing fields. Add the missing name property consistently with the model's conventions, then verify that the API response can expose the conversation name through the SDK.

Scritto dal modello di indicizzazione a partire dal testo della issue.