some changes

internal/server/server.go

@@ -114,7 +114,12 @@ func Create(name string) (*LiveServer, error) {
 		return nil, fmt.Errorf("server name is empty")
 	}
 
+	if isExists(name) {
+		return nil, fmt.Errorf("server with this name is already exists")
+	}
+
 	ls := &LiveServer{name: name}
+	pushLs(ls)
 	ls.setStatus(Status{ID: StatusStopped})
 	return ls, nil
 }
@@ -241,6 +246,17 @@ func (ls *LiveServer) stop(inst *instance) error {
 	return nil
 }
 
+func StopAll() (errors []error) {
+	for key, ls := range reg.lss {
+		slog.Debug("stopping LiveServer", slog.String("name", key))
+		err := ls.Stop()
+		if err != nil {
+			errors = append(errors, err)
+		}
+	}
+	return
+}
+
 func (ls *LiveServer) Stop() error {
 	inst := ls.active.Load().(*instance)
 	if inst == nil {
@@ -280,6 +296,12 @@ func (ls *LiveServer) Reload(newAddr string) error {
 	return nil
 }
 
+// Close deletes [LiveServer] object from registry, and sets ls to nil
+func (ls *LiveServer) Close() {
+	deleteLs(ls.name)
+	ls = nil
+}
+
 // package server
 
 // import (