fix(core): hex encode validators/validator/penalties in Header JSON

Ensure JSON marshal/unmarshal uses hex for validators, validator, and penalties so Header encoding is consistent with RPC output.

Author: gzliudan

core/state_processor.go

@@ -728,7 +728,7 @@ func ProcessParentBlockHash(prevHash common.Hash, vmenv *vm.EVM, statedb vm.Stat
 	}
 	vmenv.Reset(NewEVMTxContext(msg), statedb)
 	statedb.AddAddressToAccessList(params.HistoryStorageAddress)
-	_, _, err := vmenv.Call(vm.AccountRef(msg.From), *msg.To, msg.Data, 30_000_000, common.U2560)
+	_, _, err := vmenv.Call(msg.From, *msg.To, msg.Data, 30_000_000, common.U2560)
 	if err != nil {
 		panic(err)
 	}

core/types/block.go

@@ -95,6 +95,9 @@ type headerMarshaling struct {
 	GasUsed    hexutil.Uint64
 	Time       hexutil.Uint64
 	Extra      hexutil.Bytes
+	Validators hexutil.Bytes
+	Validator  hexutil.Bytes
+	Penalties  hexutil.Bytes
 	BaseFee    *hexutil.Big
 	Hash       common.Hash `json:"hash"` // adds call to Hash() in MarshalJSON
 }