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

sources/widgets/CompletionHintHandler.hpp

@@ -0,0 +1,34 @@
+// 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 <QPointer>
+#include <functional>
+
+namespace TextEditor {
+class TextEditorWidget;
+}
+
+namespace QodeAssist {
+
+class CompletionHintWidget;
+
+class CompletionHintHandler
+{
+public:
+    CompletionHintHandler();
+    ~CompletionHintHandler();
+
+    void showHint(TextEditor::TextEditorWidget *widget, QPoint position, int fontSize);
+    void hideHint();
+    bool isHintVisible() const;
+    void updateHintPosition(TextEditor::TextEditorWidget *widget, QPoint position);
+
+private:
+    QPointer<CompletionHintWidget> m_hintWidget;
+};
+
+} // namespace QodeAssist
+