vibechat: single-instance (QLockFile) + переименование Chat→vibechat (бинарник, конфиг, hostname node name)

tools/chatgui/src/mainwindow.cpp

@@ -109,7 +109,7 @@ MainWindow::MainWindow(QWidget *parent, DbManager* db, const QString& cfgPath,
     , m_recorder(nullptr)
     , m_autoPlayTimer(new QTimer(this))
 {
-    setWindowTitle("Chat");
+    setWindowTitle("vibechat");
     resize(900, 600);
     if (m_db) m_db->setDbPath(m_cfgDbPath);
     setupUi();
@@ -347,7 +347,7 @@ void MainWindow::setupConnects() {
 void MainWindow::setupTray() {
     m_trayIcon = new QSystemTrayIcon(this);
     m_trayIcon->setIcon(style()->standardIcon(QStyle::SP_ComputerIcon));
-    m_trayIcon->setToolTip("Chat");
+    m_trayIcon->setToolTip("vibechat");
 
     m_trayMenu = new QMenu(this);
     QAction *settingsAction = m_trayMenu->addAction("Settings");
@@ -378,7 +378,7 @@ void MainWindow::setupTray() {
 void MainWindow::closeEvent(QCloseEvent *event) {
     DEBUG_DEBUG(DEBUG_CATEGORY_GENERAL, "MainWindow: closeEvent — hiding to tray");
     hide();
-    m_trayIcon->showMessage("Chat", "Application minimized to tray.",
+    m_trayIcon->showMessage("vibechat", "Application minimized to tray.",
                              QSystemTrayIcon::Information, 2000);
     event->ignore();
 }