将AI助手的名称从'DeepVoice AI'更改为'Emma'，并添加国际化支持

lib/modules/agent/controllers/agent_controller.dart

@@ -13,15 +13,16 @@ import 'package:permission_handler/permission_handler.dart';
 import 'package:app_settings/app_settings.dart';
 
 class Message {
-  final bool isUser;
-  final String text;
-  final DateTime timestamp;
+  final bool isUser; //标识信息是否来自用户还是AI
+  final String text; //信息文本内容
+  final DateTime timestamp; // 消息时间戳
   final bool isRecognizing; // 是否为语音识别中的临时消息
   final bool hasImage; // 是否包含图片
   final String? imagePath; // 图片路径
   final Map? meta; //卡片数据
 
   Message({
+    // 构造函数
     required this.isUser,
     required this.text,
     DateTime? timestamp,
@@ -33,14 +34,14 @@ class Message {
 }
 
 class AgentController extends GetxController {
-  static AgentController get to => Get.find();
+  static AgentController get to => Get.find(); //单例访问模式
 
   final logger = Logger();
 
   // 聊天消息列表
   final messages = <Message>[].obs;
 
-  // 控制器
+  // UI控制器
   final TextEditingController textController = TextEditingController();
   final ScrollController scrollController = ScrollController();
 
@@ -49,10 +50,10 @@ class AgentController extends GetxController {
   var isPlaying = false.obs;
   var currentUrl = "".obs;
 
-  // 状态标志
+  // 各种状态标志
   final isInitialized = false.obs;
-  final isListening = false.obs;
-  final isSpeaking = false.obs;
+  final isListening = false.obs; //是否正在语音识别
+  final isSpeaking = false.obs; //是否正在播放tts
   final isProcessing = false.obs;
   // TTS启用状态
   final isTtsEnabled = true.obs;
@@ -61,7 +62,7 @@ class AgentController extends GetxController {
   final isImageProcessing = false.obs;
 
   // 输入模式控制
-  final isTextInputMode = true.obs;
+  final isTextInputMode = true.obs; //文本输入模式vs语音输入模式
 
   // 当前输入的文本内容
   final currentText = ''.obs;
@@ -86,15 +87,15 @@ class AgentController extends GetxController {
   @override
   void onInit() {
     super.onInit();
-    _loadTtsPreference();
-    _loadChatHistory();
-    _subscribeToEvents();
+    _loadTtsPreference(); //加载TTS偏好设置
+    _loadChatHistory(); //加载聊天历史记录
+    _subscribeToEvents(); //订阅代理服务事件
   }
 
   @override
   void onClose() {
-    AgentService.stopConversation();
-    AgentService.stopTts();
+    AgentService.stopConversation(); // 停止当前会话
+    AgentService.stopTts(); // 停止当前语音
     textController.dispose();
     scrollController.dispose();
     _eventSubscription?.cancel();
@@ -179,7 +180,7 @@ class AgentController extends GetxController {
   void _addWelcomeMessage() {
     messages.add(Message(
       isUser: false,
-      text: '你好！我是DeepVoice AI助手，我能帮你:\n\n'
+      text: '你好！我是Emma，我能帮你:\n\n'
           '• 回答问题和提供信息\n'
           '• 实时语音翻译\n'
           '• 推荐音乐和播客\n'

lib/modules/agent/views/agent_view.dart

@@ -52,7 +52,7 @@ class AgentView extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 Text(
-                  'DeepVoice AI',
+                  'Emma',
                   style: TextStyle(
                     fontSize: 16,
                     fontWeight: FontWeight.bold,
@@ -71,7 +71,7 @@ class AgentView extends StatelessWidget {
                     ),
                     const SizedBox(width: 4),
                     Text(
-                      '在线',
+                      '在线'.tr,
                       style: TextStyle(
                         fontSize: 12,
                         color: Colors.green,
@@ -131,7 +131,7 @@ class AgentView extends StatelessWidget {
                     children: [
                       Icon(Icons.delete_outline, color: primaryColor, size: 20),
                       const SizedBox(width: 8),
-                      const Text('清除聊天记录', style: TextStyle(fontSize: 14)),
+                      Text('清除聊天记录'.tr, style: TextStyle(fontSize: 14)),
                     ],
                   ),
                   onTap: () => Future.delayed(
@@ -246,19 +246,19 @@ class AgentView extends StatelessWidget {
                             children: [
                               _buildPromptChip(
                                 context: context,
-                                label: '总结图片内容',
+                                label: '总结图片内容'.tr,
                                 onTap: () => controller.summarizeImage(),
                               ),
                               const SizedBox(width: 8),
                               _buildPromptChip(
                                 context: context,
-                                label: '抽取图像文字',
+                                label: '抽取图像文字'.tr,
                                 onTap: () => controller.extractTextFromImage(),
                               ),
                               const SizedBox(width: 8),
                               _buildPromptChip(
                                 context: context,
-                                label: '翻译图像文字',
+                                label: '翻译图像文字'.tr,
                                 onTap: () => controller.translateImageText(),
                               ),
                             ],

lib/modules/agent/views/message_bubble.dart

@@ -311,7 +311,7 @@ class MessageBubble extends GetView<AgentController> {
                   ),
                   const SizedBox(width: 6),
                   Text(
-                    '雨天时光 · 播放列表',
+                    '播放列表'.tr,
                     style: TextStyle(
                       fontSize: 13,
                       fontWeight: FontWeight.w600,