chore: 添加调试日志以跟踪语音对话流程

添加开发者前缀的打印语句，便于调试语音对话的开始、结束和设备通信流程

lib/modules/agent/controllers/agent_controller.dart

@@ -1880,7 +1880,7 @@ class AgentController extends GetxController with WidgetsBindingObserver {
 
   // 开始按住说话
   void startPushToTalk() async {
-    Logger.i(TAG, '🎤 开始按住说话');
+    print('liwei--------- 🎤 开始按住说话');
 
     // 只有在语音模式且按住说话模式下才能按住说话
     if (isTextInputMode.value) return;
@@ -1898,7 +1898,7 @@ class AgentController extends GetxController with WidgetsBindingObserver {
 
   // 结束按住说话
   void endPushToTalk() async {
-    Logger.i(TAG, '🎤 结束按住说话');
+    print('liwei----------🎤 结束按住说话');
 
     // 如果不在按住说话状态，直接返回
     if (!isPushToTalkActive.value) return;

local_plugins/agent_service/ios/agent_service/Sources/agent_service/AgentServicePlugin.swift

@@ -74,7 +74,7 @@ public class AgentServicePlugin: NSObject, FlutterPlugin {
                 result(true)
                 return
             }
-            print("startConversation")
+            print("liwei----------AgentServicePlugin startConversation")
             let mode = (call.arguments as? [String: Any])?["mode"] as? String ?? "normal"
             impl.startRecognition(mode: mode)
             result(true)
@@ -99,7 +99,7 @@ public class AgentServicePlugin: NSObject, FlutterPlugin {
                 result(true)
                 return
             }
-            print("stopConversation")
+            print("liwei-------AgentServicePlugin stopConversation")
                                // 关闭编码器 (设备侧)
             BleService.shared.closeCodec()
             impl.stopRecognition()

local_plugins/agent_service/lib/agent_service.dart

@@ -265,8 +265,8 @@ class AgentService {
     try {
       // 在启动新对话前，确保之前的对话已完全停止
       // 这不仅可以清理状态，还能避免因快速切换导致的资源冲突
-      await stopConversation();
-
+      // await stopConversation();
+      print('liwei--------- view startConversation');
       final bool result = await _channel.invokeMethod('startConversation', {
         'mode': mode,
       });
@@ -337,6 +337,7 @@ class AgentService {
     // 即使频繁调用，Native 层也能处理（我们已经修复了 Native 层的并发问题）。
 
     try {
+      print('liwei--------- view stopConversation');
       final bool result = await _channel.invokeMethod('stopConversation');
       return result;
     } on PlatformException catch (e) {

local_plugins/ble_service/ios/ble_service/Sources/ble_service/BleService.swift

@@ -834,7 +834,7 @@ private var cmdReplyType: UInt8 = 0
     private func sendCommand(_ cmd: UInt8, data: Data = Data()) -> Bool {
         guard let characteristic = writeCharacteristic, 
               connectionState == BleConst.STATE_CONNECTED else {
-            os_log("发送命令失败: 设备未连接", log: logger, type: .error)
+            os_log("liwei---- 发送命令失败: 设备未连接", log: logger, type: .error)
             return false
         }
         
@@ -862,7 +862,7 @@ private var cmdReplyType: UInt8 = 0
             if !data.isEmpty {
                 dataHexString = data.map { String(format: "0x%02X", $0) }.joined(separator: ", ")
             }
-            os_log("发送命令: CMD=0x%02X, 长度=%d, 数据=[%@], CRC=0x%02X", 
+            os_log("liwei---- 发送命令: CMD=0x%02X, 长度=%d, 数据=[%@], CRC=0x%02X",
                    log: logger, type: .debug, cmd, cmdLength, dataHexString, crc)
             
 
@@ -881,7 +881,7 @@ private var cmdReplyType: UInt8 = 0
            
             return true
         } catch {
-            os_log("发送命令异常: %@", log: logger, type: .error, error.localizedDescription)
+            os_log("liwei---- 发送命令异常: %@", log: logger, type: .error, error.localizedDescription)
             return false
         }
     }
@@ -929,19 +929,17 @@ private var cmdReplyType: UInt8 = 0
     /// - Returns: 可用于追加写入的 RecordingFile 实例
     /// - Throws: 不抛出；若创建文件失败将导致后续写入无效
     private func ensureOpusRecordingStarted(fileName: String) -> RecordingFile {
-        if recordingFile == nil {
-            let recorder = RecordingFile()
+        let recorder = recordingFile ?? RecordingFile()
+        if recorder.fileName.isEmpty {
             recorder.fileName = fileName
-            recordingFile = recorder
-        } else if (recordingFile?.fileName.isEmpty ?? true) {
-            recordingFile?.fileName = fileName
         }
         
-        if recordingFile?.isRecording() != true {
-            recordingFile?.createFile()
+        if !recorder.isRecording() {
+            recorder.createFile()
         }
         
-        return recordingFile!
+        recordingFile = recorder
+        return recorder
     }
     
     /// 停止并释放 Opus 落盘资源
@@ -1010,7 +1008,7 @@ private var cmdReplyType: UInt8 = 0
 
         // 记录响应详情
         var hexString = data.map { String(format: "0x%02X", $0) }.joined(separator: ", ")
-        os_log("收到设备响应: %@", log: logger, type: .debug, hexString)
+        os_log("liwei---- 收到设备响应: %@", log: logger, type: .debug, hexString)
 
         // 检查数据长度（与 Android 统一失败判定保持一致）
         if data.count != Int(length) + 4 { // 帧头 + 命令 + 长度 + 数据 + CRC