Redis maint notif was disabled. ONLY FOR REDIS CLOUD

src/contract_check/core/redis_client.py

@@ -13,7 +13,17 @@ def get_redis_client(redis_url: str) -> Any:
 
     Callers own the connection lifecycle. The api creates one client at startup
     and stores it in app.state.redis.
+
+    Maintenance notifications are disabled: they are a Redis Cloud feature and
+    self-hosted/Valkey servers reject ``CLIENT MAINT_NOTIFICATIONS`` with an
+    ``unknown subcommand`` error, spamming debug logs.
     """
     from redis.asyncio import Redis as AsyncRedis
+    from redis.maint_notifications import MaintNotificationsConfig
 
-    return AsyncRedis.from_url(redis_url, decode_responses=True)
+    maint_config = MaintNotificationsConfig(enabled=False)
+    return AsyncRedis.from_url(
+        redis_url,
+        decode_responses=True,
+        maint_notifications_config=maint_config,
+    )