refactor: Restructure project into sources/tests layout and dissolve PluginLLMCore

sources/widgets/ProgressWidget.hpp

@@ -0,0 +1,45 @@
+// Copyright (C) 2025-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <QPainter>
+#include <QTimer>
+#include <QWidget>
+#include <functional>
+
+#include <utils/progressindicator.h>
+#include <utils/theme/theme.h>
+
+namespace QodeAssist {
+
+class ProgressWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    ProgressWidget(QWidget *parent = nullptr);
+    ~ProgressWidget();
+
+    void setCancelCallback(std::function<void()> callback);
+
+signals:
+    void cancelRequested();
+
+protected:
+    void paintEvent(QPaintEvent *) override;
+    void enterEvent(QEnterEvent *event) override;
+    void leaveEvent(QEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+
+private:
+    QTimer m_timer;
+    int m_dotPosition;
+    QColor m_textColor;
+    QColor m_backgroundColor;
+    QPixmap m_logoPixmap;
+    bool m_isHovered;
+    std::function<void()> m_cancelCallback;
+};
+
+} // namespace QodeAssist