Update __main__.py

Add volume max percentage and config for volume sync.

linux_voice_assistant/__main__.py

@@ -169,17 +169,21 @@ async def main() -> None:
     # --- 5b. Sync OS sink volume to persisted volume ---
     # mpv's per-player volume is kept at 100% and ducking is handled within mpv.
     # The user-visible "volume" in HA maps to the OS output volume (PipeWire/Pulse/ALSA).
+    if getattr(config.audio, "volume_sync", False):
         try:
             loop.create_task(
                 ensure_output_volume(
                     volume=preferences.volume_level,
                     output_device=config.audio.output_device,
+                    max_volume_percent=getattr(config.audio, "max_volume_percent", 100),
                     attempts=20,
                     delay_seconds=0.5,
                 )
             )
         except Exception:
             _LOGGER.exception("Failed to schedule output volume sync")
+    else:
+        _LOGGER.debug("Output volume sync disabled (audio.volume_sync=false)")
 
     # --- 6. Create Server State ---
     state = _create_server_state(