refactor: Modular inbounds/outbounds

adapter/inbound.go

@@ -5,6 +5,7 @@ import (
 	"net/netip"
 
 	"github.com/sagernet/sing-box/common/process"
+	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	M "github.com/sagernet/sing/common/metadata"
 )
@@ -25,6 +26,11 @@ type UDPInjectableInbound interface {
 	PacketConnectionHandlerEx
 }
 
+type InboundRegistry interface {
+	option.InboundOptionsRegistry
+	CreateInbound(ctx context.Context, router Router, logger log.ContextLogger, tag string, outboundType string, options any) (Inbound, error)
+}
+
 type InboundContext struct {
 	Inbound     string
 	InboundType string
@@ -44,6 +50,7 @@ type InboundContext struct {
 
 	// cache
 
+	// Deprecated: implement in rule action
 	InboundDetour     string
 	LastInbound       string
 	OriginDestination M.Socksaddr