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

.vscode/settings.json

@@ -9,5 +9,7 @@
 		"dist": true // set this to false to include "dist" folder in search results
 	},
 	// Turn off tsc task auto detection since we have the necessary tasks as npm scripts
-	"typescript.tsc.autoDetect": "off"
+	"typescript.tsc.autoDetect": "off",
+	// IC Coder 后端服务地址
+	"icCoder.backendUrl": "http://192.168.1.108:2233"
 }