Fix: Add keep-alive options to Redis clients to prevent idle timeouts and socket closing. (#4377)

* redis keepalive mechanism for all redis

* removed offline queue commands

* Simplified changes for consistency. Added REDIS_KEEP_ALIVE env variable.

* update redis socket alive env variable

* lint fix

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Co-authored-by: Henry <hzj94@hotmail.com>
Co-authored-by: Henry Heng <henryheng@flowiseai.com>

docker/docker-compose.yml

@@ -49,6 +49,7 @@ services:
             - REDIS_CERT=${REDIS_CERT}
             - REDIS_KEY=${REDIS_KEY}
             - REDIS_CA=${REDIS_CA}
+            - REDIS_KEEP_ALIVE=${REDIS_KEEP_ALIVE}
             - ENABLE_BULLMQ_DASHBOARD=${ENABLE_BULLMQ_DASHBOARD}
         ports:
             - '${PORT}:${PORT}'