fix: select audio input device via env

app/audio/wakeword.py

@@ -37,7 +37,9 @@ class WakeWordDetector:
         )
 
         # Используем общий экземпляр PyAudio
-        self.pa = get_audio_manager().get_pyaudio()
+        audio_manager = get_audio_manager()
+        self.pa = audio_manager.get_pyaudio()
+        self._input_device_index = audio_manager.get_input_device_index()
         self._open_stream()
         print(f"🎤 Ожидание wake word 'Alexandr' (sens={PORCUPINE_SENSITIVITY:.2f})...")
 
@@ -54,12 +56,17 @@ class WakeWordDetector:
                 pass
 
         # Открываем поток с параметрами, которые требует Porcupine
+        kwargs = {}
+        if getattr(self, "_input_device_index", None) is not None:
+            kwargs["input_device_index"] = self._input_device_index
+
         self.audio_stream = self.pa.open(
             rate=self.porcupine.sample_rate,
             channels=1,
             format=pyaudio.paInt16,
             input=True,
             frames_per_buffer=self.porcupine.frame_length,
+            **kwargs,
         )
         self._stream_closed = False