refactor: WireGuard endpoint

include/wireguard.go

@@ -3,6 +3,7 @@
 package include
 
 import (
+	"github.com/sagernet/sing-box/adapter/endpoint"
 	"github.com/sagernet/sing-box/adapter/outbound"
 	"github.com/sagernet/sing-box/protocol/wireguard"
 )
@@ -10,3 +11,7 @@ import (
 func registerWireGuardOutbound(registry *outbound.Registry) {
 	wireguard.RegisterOutbound(registry)
 }
+
+func registerWireGuardEndpoint(registry *endpoint.Registry) {
+	wireguard.RegisterEndpoint(registry)
+}