feat: replace stdlig flag with pflag by spf13

internal/server/api/api.go

@@ -24,7 +24,7 @@ func KickoffApi(logger *slog.Logger, env bootstrap.Environment, db *gorm.DB) {
 	r.Use(middleware.SlogMiddleware(logger))
 	r.Use(gin.Recovery())
 
-	if env.AuthenticationEnabled {
+	if env.Authentication {
 		slog.Debug("activating authentication middleware") // only log when actually doign the thing it logs to do
 		r.Use(middleware.AuthMiddleware())
 	}