message: [node] fix dev network miner config.
diff: @@ -39,7 +39,7 @@ impl ConfigModule for MinerConfig {
  _ => PacemakerStrategy::HeadBlock,
  };
  Self {
  - dev_mode: false,
  + dev_mode: net.is_dev(),
  stratum_server: "127.0.0.1:9000".parse::<SocketAddr>().unwrap(),
  dev_period: 0,
  pacemaker_strategy,
  