refactor: Modular inbounds/outbounds

adapter/inbound/adapter.go

@@ -0,0 +1,21 @@
+package inbound
+
+type Adapter struct {
+	inboundType string
+	inboundTag  string
+}
+
+func NewAdapter(inboundType string, inboundTag string) Adapter {
+	return Adapter{
+		inboundType: inboundType,
+		inboundTag:  inboundTag,
+	}
+}
+
+func (a *Adapter) Type() string {
+	return a.inboundType
+}
+
+func (a *Adapter) Tag() string {
+	return a.inboundTag
+}