Clean up code and make cluster_mode consistent with other boolean flags

Author: giladwpx

README.md

@@ -124,7 +124,7 @@ You can configure Claude Desktop to use this MCP Server.
                 "REDIS_PSW": "<your_redis_database_password>",
                 "REDIS_SSL": True|False,
                 "REDIS_CA_PATH": "<your_redis_ca_path>",
-                "REDIS_CLUSTER_MODE": True|False  # Set to True to enable Redis Cluster mode
+                "REDIS_CLUSTER_MODE": True|False
             }
         }
     }

src/common/config.py

@@ -16,7 +16,7 @@
              "ssl_certfile": os.getenv('REDIS_SSL_CERTFILE', None),
              "ssl_cert_reqs": os.getenv('REDIS_SSL_CERT_REQS', 'required'),
              "ssl_ca_certs": os.getenv('REDIS_SSL_CA_CERTS', None),
-             "cluster_mode": os.getenv('REDIS_CLUSTER_MODE', 'false').lower() in ('true', '1', 't')}
+             "cluster_mode": os.getenv('REDIS_CLUSTER_MODE', False) in ('true', '1', 't')}
 
 
 def generate_redis_uri():

src/common/connection.py

@@ -17,7 +17,6 @@ def get_connection(cls, decode_responses=True) -> Redis:
         if cls._instance is None:
             try:
                 if REDIS_CFG["cluster_mode"]:
-                    # In cluster mode, connect to the host and port from REDIS_CFG
                     cls._instance = RedisCluster(
                         host=REDIS_CFG["host"],
                         port=REDIS_CFG["port"],