增强任务有效性检查，添加日志记录以便于调试。

src/voice_dialogue/services/audio/generator.py

@@ -83,6 +83,7 @@ class TTSAudioGenerator(BaseThread, TaskStatusMixin):
             return
 
         if not self.is_task_valid(voice_task):
+            logger.info(f"TTS 音频生成: 任务<{voice_task.id}> 无效")
             return
 
         if has_no_words(voice_task.answer_sentence):

src/voice_dialogue/services/audio/player.py

@@ -41,6 +41,7 @@ class AudioStreamPlayer(BaseThread, TaskStatusMixin, HistoryMixin, PerformanceLo
                 return  # 任务被中断，结束处理
 
             if not self.is_task_valid(voice_task):
+                logger.info(f"音频播放: 任务<{voice_task.id}> 无效")
                 return  # 任务无效，结束处理
 
             # 等待用户彻底静音的信号

src/voice_dialogue/services/mixins.py

@@ -13,16 +13,24 @@ class TaskStatusMixin:
 
     def is_task_interrupted(self, voice_task: VoiceTask) -> bool:
         """检查语音任务是否被其他任务中断"""
-        return (voice_state_manager.interrupt_task_id and
-                voice_task.id != voice_state_manager.interrupt_task_id)
+        if not voice_state_manager.interrupt_task_id:
+            return False
+
+        if voice_task.id != voice_state_manager.interrupt_task_id:
+            logger.info(f"任务<{voice_task.id}> 被任务<{voice_state_manager.interrupt_task_id}> 中断")
+            return True
+        
+        return False
 
     def is_task_valid(self, voice_task: VoiceTask) -> bool:
         """检查语音任务是否有效（会话匹配、未被丢弃等）"""
         if self.is_task_interrupted(voice_task):
             return False
         if voice_task.session_id != session_manager.current_id:
+            logger.info(f"任务<{voice_task.id}> 会话不匹配: {voice_task.session_id} != {session_manager.current_id}")
             return False
         if voice_task.answer_id in dropped_audio_cache:
+            logger.info(f"任务<{voice_task.id}> 被丢弃: {voice_task.answer_id}")
             return False
         return True