refactored 5

apps/abstraction/main.py

@@ -296,7 +296,6 @@ async def mqtt_worker(config: dict[str, Any], redis_client: aioredis.Redis) -> N
             ) as client:
                 logger.info(f"Connected to MQTT broker as {unique_client_id}")
                 
-                async with client.messages as messages:
                 # Subscribe to topics for all devices
                 for device in devices.values():
                     device_id = device['device_id']
@@ -323,7 +322,7 @@ async def mqtt_worker(config: dict[str, Any], redis_client: aioredis.Redis) -> N
                 connection_timeout = keepalive * 2  # 2x keepalive as timeout
                 
                 # Process messages
-                    async for message in messages:
+                async for message in client.messages:
                     try:
                         last_activity = asyncio.get_event_loop().time()
                         topic = str(message.topic)