fix: 修复AI询问时选项点击后选中状态丢失的问题

- 添加 answeredQuestions Map 存储已回答问题的状态
- 在重新渲染时恢复选中状态和 answered 类
- 已回答的问题自动隐藏输入框并禁用点击事件
- 确保用户选择在页面更新时保持显示

src/config/settings.ts

@@ -2,7 +2,7 @@
  * 配置管理
  * 从 VSCode 设置读取配置项
  */
-import * as vscode from 'vscode';
+import * as vscode from "vscode";
 
 /** 配置项接口 */
 export interface IccoderConfig {
@@ -16,21 +16,21 @@ export interface IccoderConfig {
 
 /** 默认配置 */
 const DEFAULT_CONFIG: IccoderConfig = {
-  backendUrl: 'http://localhost:8080',
+  backendUrl: "http://localhost:8080",
   timeout: 60000,
-  userId: 'default-user'
+  userId: "default-user",
 };
 
 /**
  * 获取配置项
  */
 export function getConfig(): IccoderConfig {
-  const config = vscode.workspace.getConfiguration('icCoder');
+  const config = vscode.workspace.getConfiguration("icCoder");
 
   return {
-    backendUrl: config.get<string>('backendUrl', DEFAULT_CONFIG.backendUrl),
-    timeout: config.get<number>('timeout', DEFAULT_CONFIG.timeout),
-    userId: config.get<string>('userId', DEFAULT_CONFIG.userId)
+    backendUrl: config.get<string>("backendUrl", DEFAULT_CONFIG.backendUrl),
+    timeout: config.get<number>("timeout", DEFAULT_CONFIG.timeout),
+    userId: config.get<string>("userId", DEFAULT_CONFIG.userId),
   };
 }
 
@@ -40,7 +40,9 @@ export function getConfig(): IccoderConfig {
 export function getApiUrl(path: string): string {
   const { backendUrl } = getConfig();
   // 确保 URL 格式正确
-  const baseUrl = backendUrl.endsWith('/') ? backendUrl.slice(0, -1) : backendUrl;
-  const apiPath = path.startsWith('/') ? path : `/${path}`;
+  const baseUrl = backendUrl.endsWith("/")
+    ? backendUrl.slice(0, -1)
+    : backendUrl;
+  const apiPath = path.startsWith("/") ? path : `/${path}`;
   return `${baseUrl}${apiPath}`;
 }