Safer Feature Flagging: Cache + DB Fallback

                  class FeatureFlags
  def enabled?(name, member: nil)
    key = "ff:#{name}:member:#{member&.id || 'anon'}"

    Rails.cache.fetch(key, expires_in: 30.seconds) do
      flag = FeatureFlag.find_by!(name: name)
      flag.enabled_for?(member)
    end
  rescue Redis::BaseError
    flag = FeatureFlag.find_by!(name: name)
    flag.enabled_for?(member)
  end
end