restructured the project to comply community guideline, for others check release note

internal/proxy/fields/host.go

@@ -0,0 +1,12 @@
+package fields
+
+import (
+	E "github.com/yusing/go-proxy/internal/error"
+)
+
+type Host string
+type Subdomain = Alias
+
+func ValidateHost[String ~string](s String) (Host, E.NestedError) {
+	return Host(s), nil
+}