refactor: Full rework quick refactor (#257)

RefactorSuggestion.hpp

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+/* 
+ * Copyright (C) 2024-2025 Petr Mironychev
+ *
+ * This file is part of QodeAssist.
+ *
+ * QodeAssist is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QodeAssist is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QodeAssist. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <texteditor/texteditor.h>
+#include <texteditor/textsuggestion.h>
+
+namespace QodeAssist {
+
+/**
+ * @brief Persistent refactoring suggestion that displays code changes inline
+ * 
+ * Unlike LLMSuggestion which supports partial acceptance (word/line), 
+ * RefactorSuggestion is designed to show complete refactoring results 
+ * that must be either fully accepted or rejected by the user.
+ */
+class RefactorSuggestion : public TextEditor::TextSuggestion
+{
+public:
+    /**
+     * @brief Constructs a refactoring suggestion
+     * @param suggestion Suggestion data (range, position, text)
+     * @param sourceDocument The document where suggestion will be displayed
+     */
+    RefactorSuggestion(const Data &suggestion, QTextDocument *sourceDocument);
+
+    /**
+     * @brief Applies the full refactoring suggestion with smart overlapping
+     * @return true if suggestion was applied successfully
+     */
+    bool apply() override;
+
+    /**
+     * @brief Disabled: Word-by-word acceptance not supported for refactoring
+     */
+    bool applyWord(TextEditor::TextEditorWidget *widget) override;
+
+    /**
+     * @brief Disabled: Line-by-line acceptance not supported for refactoring
+     */
+    bool applyLine(TextEditor::TextEditorWidget *widget) override;
+
+private:
+    Data m_suggestionData;
+};
+
+} // namespace QodeAssist
+