feat: site count

internal/handlers/response/site.go

@@ -24,6 +24,10 @@ type SiteName struct {
 	Name string `json:"name"`
 }
 
+type SiteCount struct {
+	Count int `json:"count"`
+}
+
 type SiteList struct {
 	Sites  []Site `json:"sites"`
 	Total  int64  `json:"total"`