update default null chainId value

Author: Unheilbar

.tool-versions

@@ -0,0 +1 @@
+golang 1.24.1

multinode/send_only_node.go

@@ -108,7 +108,7 @@ func (s *sendOnlyNode[CHAIN_ID, RPC]) start() {
 	}
 	s.setState(nodeStateDialed)
 
-	if s.chainID.String() == "0" {
+	if s.chainID.String() == fmt.Sprint(NullClientChainID) {
 		// Skip verification if chainID is zero
 		s.log.Warn("sendonly rpc ChainID verification skipped")
 	} else {

multinode/utils.go

@@ -9,6 +9,8 @@ import (
 	"github.com/jpillora/backoff"
 )
 
+const NullClientChainID = 1399100
+
 func RandomID() ID {
 	// #nosec G404
 	id := rand.Int63n(math.MaxInt32) + 10000