fix(蓝牙): 添加蓝牙耳机状态错误提示并更新相关翻译

当蓝牙编解码打开失败时，显示更明确的错误提示信息

lib/core/translations/language/en_us.dart

@@ -1205,6 +1205,8 @@ const Map<String, String> enUS = {
   "selectTargetLanguage": "Select Target Language",
   "me": "Me", //我
   "counterPart": "Counterpart", //对方
+  "bluetoothCallStateError":
+      "Please make sure the Bluetooth headset is connected to the phone and in a call state", //请确保蓝牙耳机已连接到手机并处于通话状态
 
   // 通用对话按钮与选项（用于统一语言选择弹窗等）
   // 翻译键代表的中文文本内容：取消/确认/自动检测

lib/core/translations/language/zh_cn.dart

@@ -1107,6 +1107,7 @@ const Map<String, String> zhCN = {
   "selectTargetLanguage": "选择目标语言",
   "me": "我",
   "counterPart": "对方",
+  "bluetoothCallStateError": "请确保蓝牙耳机已连接到手机并处于通话状态",
 
   // 通用对话按钮与选项（用于统一语言选择弹窗等）
   // 以下翻译键的中文文本内容如注释所示

lib/modules/translation/controllers/translation_controller.dart

@@ -953,7 +953,7 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
     }
     isPreparing.value = false;
     if (!bleManager.isCodecActive) {
-      Get.snackbar('tip'.tr, 'operationFailedPleaseRetry'.tr);
+      Get.snackbar('tip'.tr, 'bluetoothCallStateError'.tr);
       throw Exception('lxm--BLE编解码打开失败');
     }
     _audioSourceType = true;