🏷️ Added BaseURL property for Site domain

internal/domain/site.go

@@ -1,6 +1,7 @@
 package domain
 
 import (
+	"net/url"
 	"time"
 
 	"golang.org/x/text/language"
@@ -8,6 +9,7 @@ import (
 
 type Site struct {
 	Language language.Tag
+	BaseURL  *url.URL
 	TimeZone *time.Location
 	Params   map[string]any
 	Title    string