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

sources/settings/SettingsDialog.hpp

@@ -0,0 +1,35 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#include <QComboBox>
+#include <QDialog>
+#include <QLabel>
+#include <QLayout>
+#include <QLineEdit>
+#include <QWidget>
+
+#include <coreplugin/icore.h>
+
+namespace QodeAssist::Settings {
+
+class SettingsDialog : public QDialog
+{
+public:
+    explicit SettingsDialog(const QString &title, QWidget *parent = Core::ICore::dialogParent());
+
+    QLabel *addLabel(const QString &text);
+    QLineEdit *addInputField(const QString &labelText, const QString &value);
+    void addSpacing(int space = 12);
+    QHBoxLayout *buttonLayout();
+    QVBoxLayout *mainLayout() const;
+
+    QComboBox *addComboBox(
+        const QStringList &items, const QString &currentText = QString(), bool editable = true);
+
+private:
+    QVBoxLayout *m_mainLayout;
+    QHBoxLayout *m_buttonLayout;
+};
+
+} // namespace QodeAssist::Settings