Update App version to 0.1.3

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>

network.go

@@ -167,3 +167,16 @@ func rpcRenewDHCPLease() error {
 func rpcRequestDHCPAddress(ip string) error {
 	return networkState.RpcRequestDHCPAddress(ip)
 }
+
+const ethernetMacAddressPath = "/userdata/ethaddr.txt"
+
+func rpcSetEthernetMacAddress(macAddress string) (interface{}, error) {
+	normalized, err := networkState.SetMACAddress(macAddress)
+	if err != nil {
+		return nil, err
+	}
+	if err := os.WriteFile(ethernetMacAddressPath, []byte(normalized+"\n"), 0644); err != nil {
+		return nil, fmt.Errorf("failed to write %s: %w", ethernetMacAddressPath, err)
+	}
+	return networkState.RpcGetNetworkState(), nil
+}