message: sanity check channel timeout is not 0 in rollup config check
diff: @@ -60,6 +60,9 @@ func (cfg *Config) Check() error {
  if cfg.BlockTime == 0 {
  return fmt.Errorf("block time cannot be 0, got %d", cfg.BlockTime)
  }
  + if cfg.ChannelTimeout == 0 {
  + return fmt.Errorf("channel timeout must be set, this should cover at least a L1 block time")
  + }
  if cfg.SeqWindowSize < 2 {
  return fmt.Errorf("sequencing window size must at least be 2, got %d", cfg.SeqWindowSize)
  }
  