feat(voice): add iOS VAD runtime support

apps/chanora_flutter/lib/l10n/app_zh.arb

@@ -16,6 +16,8 @@
   "disconnectAction": "断开连接",
   "refreshAction": "刷新",
   "diagnosticsAction": "诊断信息",
+  "diagnosticsSaveAction": "保存导出",
+  "diagnosticsSaved": "诊断导出已保存到 {path}",
   "aboutAction": "关于",
   "aboutVersion": "版本 {version}",
   "aboutAuthor": "作者: Edison Jwa",
@@ -118,5 +120,16 @@
   "networkPermissionOpenSettings": "打开系统设置",
   "microphonePermissionTitle": "需要麦克风权限",
   "microphonePermissionBody": "Chanora 需要麦克风访问权限。请前往系统设置 → 隐私与安全性 → 麦克风，启用 Chanora。",
+  "microphonePermissionRequiredForVoice": "语音发送需要麦克风权限。",
+  "permissionGrantAction": "授权",
+  "audioRouteSystemDefault": "系统默认",
+  "audioRouteEarpiece": "听筒",
+  "audioRouteUsbHeadset": "USB 耳机",
+  "audioRouteOtherDevice": "其他设备",
+  "audioRouteRefreshDevices": "刷新音频设备",
+  "audioRouteCannotSelect": "无法选择此输出设备。",
+  "audioRouteChangeFailed": "无法切换音频输出。",
+  "iosAudioInterrupted": "系统已中断音频（电话通话）",
+  "iosAudioResuming": "音频正在恢复",
   "permissionDenied": "权限被拒绝"
 }