fix(realtime): tolerate missing scoreboard channel layer

realtime/broadcast.py

@@ -1,20 +1,35 @@
 from asgiref.sync import async_to_sync
+from channels.exceptions import InvalidChannelLayerError
 from channels.layers import get_channel_layer
+from redis.exceptions import ConnectionError as RedisConnectionError
 
 
 async def broadcast_phase_event(session_code: str, event_type: str, payload: dict) -> None:
     """Send a phase event to all WebSocket clients connected to a game session."""
-    channel_layer = get_channel_layer()
+    try:
+        channel_layer = get_channel_layer()
+    except InvalidChannelLayerError:
+        return
+
+    if channel_layer is None:
+        return
+
     group_name = f"game_{session_code.upper()}"
-    await channel_layer.group_send(
-        group_name,
-        {
-            "type": "phase_event",
-            "payload": {"type": event_type, **payload},
-        },
-    )
+    try:
+        await channel_layer.group_send(
+            group_name,
+            {
+                "type": "phase_event",
+                "payload": {"type": event_type, **payload},
+            },
+        )
+    except (InvalidChannelLayerError, RedisConnectionError):
+        return
 
 
 def sync_broadcast_phase_event(session_code: str, event_type: str, payload: dict) -> None:
     """Sync wrapper for calling broadcast_phase_event from synchronous Django views."""
-    async_to_sync(broadcast_phase_event)(session_code, event_type, payload)
+    try:
+        async_to_sync(broadcast_phase_event)(session_code, event_type, payload)
+    except (InvalidChannelLayerError, RedisConnectionError):
+        return