fixes

services/presence.py

@@ -0,0 +1,11 @@
+import json
+from redis import redis
+
+
+async def notify_message(message, chat_id: str):
+    channel_name = f"chat:{chat_id}"
+    data = {**message, "kind": "new_message"}
+    try:
+        await redis.execute_pubsub("PUBLISH", channel_name, json.dumps(data))
+    except Exception as e:
+        print(f"Failed to publish to channel {channel_name}: {e}")