bug: same chain id network config collision

[TuDo1403]

Description

• Network config defined with identical chain id can result in collision in data config

enum Network {
   RoninTestnetShadow,
   RoninTestnet
}

function chainId(Network network) pure returns (uint256) {
  if (network == Network.RoninTestnet) return 2021;
  if (network == Network.RoninTestnetShadow) return 2021;

  revert("Network: Unknown chain id");
}

Root cause:

• In NetworkConfig, block.chainid is treated as primary key.

mapping(uint256 chainId => TNetwork network) internal _networkMap;

[TuDo1403]

resolved in #144