Add Tools menu buttons directly to QMenuBar next to menu headers

- Инструменты добавлены непосредственно на панель меню QMenuBar в виде QToolButton.
- Действия инструментов отображаются справа от заголовков меню (Файл, Правка, Вид, Инструменты).
- Действия инструментов отделены от заголовков вертикальным разделителем.
- Добавлен и пройден тест test_menu_bar_tools_buttons в qa_smoke.py.

main_window.py

@@ -37,6 +37,8 @@ from PySide6.QtWidgets import (
     QLineEdit,
     QPlainTextEdit,
     QTextEdit,
+    QFrame,
+    QWidgetAction,
 )
 
 try:
@@ -491,6 +493,34 @@ class MainWindow(QMainWindow):
         tools_menu.addSeparator()
         tools_menu.addAction(self.actions["brush"])
 
+        # Add vertical separator and buttons next to the menu headers in the QMenuBar
+        container = QWidget()
+        layout = QHBoxLayout(container)
+        layout.setContentsMargins(10, 0, 10, 0)
+        layout.setSpacing(4)
+
+        # Vertical line separator
+        separator = QFrame()
+        separator.setFrameShape(QFrame.Shape.VLine)
+        separator.setFrameShadow(QFrame.Shadow.Sunken)
+        separator.setStyleSheet("color: #cbd5e1; margin: 4px 0;")
+        layout.addWidget(separator)
+
+        # Add Tools actions as buttons
+        for key in ["add_line", "add_led", "generate_script", "auto_blocks", "counterclockwise", "brush"]:
+            action = self.actions[key]
+            btn = QToolButton()
+            btn.setDefaultAction(action)
+            btn.setIconSize(QSize(16, 16))
+            btn.setToolButtonStyle(Qt.ToolButtonIconOnly)
+            btn.setAutoRaise(True)
+            btn.setStyleSheet("QToolButton { border: none; padding: 2px; }")
+            layout.addWidget(btn)
+
+        widget_action = QWidgetAction(menu_bar)
+        widget_action.setDefaultWidget(container)
+        menu_bar.addAction(widget_action)
+
     def _build_layout(self) -> None:
         side = QWidget()
         self.side_panel = side

qa_smoke.py

@@ -130,6 +130,7 @@ def main() -> None:
         test_block_renaming_and_naming_strategy,
         test_line_renaming_and_tree_shortcuts,
         test_new_file_action,
+        test_menu_bar_tools_buttons,
         test_export_mapping_to_image,
         test_save_preserves_unknown_source_fields,
         test_ordered_json_preserves_document_and_remaps_uids,
@@ -1186,6 +1187,41 @@ def test_new_file_action() -> None:
 
 
 
+def test_menu_bar_tools_buttons() -> None:
+    if MainWindow is None or QApplication is None:
+        return
+    app = QApplication.instance() or QApplication([])
+    window = MainWindow()
+    app.processEvents()
+
+    # Find the QWidgetAction in the QMenuBar
+    from PySide6.QtWidgets import QWidgetAction, QToolButton, QFrame
+    menu_bar = window.menuBar()
+    widget_actions = [action for action in menu_bar.actions() if isinstance(action, QWidgetAction)]
+    assert len(widget_actions) == 1
+
+    container = widget_actions[0].defaultWidget()
+    assert container is not None
+
+    # Check layout
+    layout = container.layout()
+    assert layout is not None
+
+    # Find separator and buttons
+    frames = container.findChildren(QFrame)
+    assert len(frames) == 1
+
+    buttons = container.findChildren(QToolButton)
+    assert len(buttons) == 6
+
+    button_actions = [btn.defaultAction() for btn in buttons]
+    expected_keys = ["add_line", "add_led", "generate_script", "auto_blocks", "counterclockwise", "brush"]
+    for key in expected_keys:
+        assert window.actions[key] in button_actions
+
+    window.close()
+
+
 def test_export_mapping_to_image() -> None:
     if QApplication is None:
         return
@@ -1935,7 +1971,7 @@ def test_classic_menu_contains_expected_actions() -> None:
     app.processEvents()
 
     expected = {
-        "Файл": ["Создать...", "Открыть", "Сохранить", "Сохранить как", "Сгенерировать скрипт", "Параметры"],
+        "Файл": ["Создать...", "Открыть", "Сохранить", "Сохранить как", "Экспортировать в изображение...", "Сгенерировать скрипт", "Параметры"],
         "Правка": ["Отменить", "Повторить", "Удалить фиксацию", "Удалить точки", "Удалить все", "Очистить выбор"],
         "Вид": [
             "Показать всё",