Function serialize_chain_config_go_style 

pub fn serialize_chain_config_go_style(config: &Value) -> Vec<u8> 

Serialize a chain-config JSON object the way Go’s json.Marshal of params.ChainConfig would. Field order, address casing, and which fields are emitted (vs. dropped via omitempty) match Go’s encoder so the resulting bytes are byte-identical to what ArbOS init stores in the chain_config subspace at genesis.