fix(tts): 在TTS播放时停止气泡音避免声音重叠

修改iOS和Android端的TTS播放逻辑，在开始流式TTS、播放完成、取消或出错时立即停止气泡音播放。避免两种声音同时播放造成干扰，提升用户体验。

local_plugins/agent_service/android/src/main/kotlin/com/yunqiinnovation/agent_service/AgentService.kt

@@ -316,6 +316,8 @@ object AgentService : CoroutineScope {
                             _isTtsSpeaking.set(true)
                             restartIdleCheck()
                             sendEvent("tts_started", mapOf("status" to "started"))
+                            // 停止气泡音，避免与TTS同时播放
+                            audioPlayer?.stopAudio()
                         }
 
                         TtsEventType.SYNTHESIS_COMPLETED -> {
@@ -328,11 +330,15 @@ object AgentService : CoroutineScope {
                             _isTtsSpeaking.set(false)
                             restartIdleCheck()
                             sendEvent("tts_canceled", mapOf("status" to "canceled"))
+                            // TTS取消时停止气泡音
+                            audioPlayer?.stopAudio()
                         }
 
                         TtsEventType.PLAYBACK_STARTED -> { //开始AI播报内容
                             restartIdleCheck()
                             sendEvent("playback_started", mapOf("status" to "playback_started"))
+                            // 确保气泡音已停止，避免与TTS播放重叠
+                            audioPlayer?.stopAudio()
                             // 发送AI说话开始广播
                             val intent =
                                 Intent("com.yunqiinnovation.music_service.AI_SAY_START").apply {
@@ -355,6 +361,8 @@ object AgentService : CoroutineScope {
                         TtsEventType.ERROR -> {
                             _isTtsSpeaking.set(false)
                             restartIdleCheck()
+                            // TTS错误时停止气泡音
+                            audioPlayer?.stopAudio()
                             val params = event.params
                             val code = params["errorCode"] as? String ?: "UNKNOWN_ERROR"
                             val message = params["errorMessage"] as? String ?: "未知错误"
@@ -663,6 +671,8 @@ object AgentService : CoroutineScope {
             // 并行执行停止操作，加快响应速度
             stopTts()
             stopAiStream()
+            // 停止气泡音，避免在打断后继续播放
+            audioPlayer?.stopAudio()
 
             // 记录打断耗时
 
@@ -888,7 +898,8 @@ object AgentService : CoroutineScope {
                                 responseBuilder.append(token)
                                 if (speakResponse && reply && broadcast) {
                                     ttsService?.speakStream(token)
-                                    // audioPlayer?.stopAudio()
+                                    // 在开始流式TTS时立即停止气泡音
+                                    audioPlayer?.stopAudio()
                                 }
                                 if (reply && token.isNotEmpty()) {
                                     // 发送流式回复token

local_plugins/agent_service/ios/agent_service/Sources/agent_service/AgentServiceImpl.swift

@@ -996,7 +996,8 @@ class ChatApiStreamCallback: StreamCallback {
             
             if speakResponse && reply && broadcast{
                 try agentService.azureTtsHelper?.speakStream(token)
-//                try agentService.audioPlayer?.stopAwaitSound()
+                // 在开始流式TTS时立即停止气泡音
+                try agentService.audioPlayer?.stopAwaitSound()
             }
             if (reply && token != "") {
                 try agentService.sendEvent(name: "assistant_token", data: ["token": token])