feat(route): add bind address support for TCP/UDP routes

- Introduced a new `Bind` field in the route configuration to specify the address to listen on for TCP and UDP routes.
- Defaulted the bind address to "0.0.0.0" if not provided.
- Enhanced validation to ensure the bind address is a valid IP.
- Updated stream initialization to use the correct network type (tcp4/tcp6 or udp4/udp6) based on the bind address.
- Refactored stream creation functions to accept the network type as a parameter.

internal/route/stream/tcp_tcp.go

@@ -14,6 +14,7 @@ import (
 )
 
 type TCPTCPStream struct {
+	network  string
 	listener net.Listener
 	laddr    *net.TCPAddr
 	dst      *net.TCPAddr
@@ -24,21 +25,21 @@ type TCPTCPStream struct {
 	closed atomic.Bool
 }
 
-func NewTCPTCPStream(listenAddr, dstAddr string) (nettypes.Stream, error) {
-	dst, err := net.ResolveTCPAddr("tcp", dstAddr)
+func NewTCPTCPStream(network, listenAddr, dstAddr string) (nettypes.Stream, error) {
+	dst, err := net.ResolveTCPAddr(network, dstAddr)
 	if err != nil {
 		return nil, err
 	}
-	laddr, err := net.ResolveTCPAddr("tcp", listenAddr)
+	laddr, err := net.ResolveTCPAddr(network, listenAddr)
 	if err != nil {
 		return nil, err
 	}
-	return &TCPTCPStream{laddr: laddr, dst: dst}, nil
+	return &TCPTCPStream{network: network, laddr: laddr, dst: dst}, nil
 }
 
 func (s *TCPTCPStream) ListenAndServe(ctx context.Context, preDial, onRead nettypes.HookFunc) {
 	var err error
-	s.listener, err = net.ListenTCP("tcp", s.laddr)
+	s.listener, err = net.ListenTCP(s.network, s.laddr)
 	if err != nil {
 		logErr(s, err, "failed to listen")
 		return