List all ACL definitions

{
    "message": "ACLs retrieved successfully",
    "status": "success",
    "data": [
        {
            "acl_name": "can_create_account",
            "group": "accounts",
            "display_name": "Can Create Account",
            "description": "Allows creating new accounts in the system"
        },
        {
            "acl_name": "can_list_accounts",
            "group": "accounts",
            "display_name": "Can List Accounts",
            "description": "Allows listing accounts"
        }
    ]
}