feat: add support code completion via acp

sources/tools/ProposeCompletionTool.hpp

@@ -0,0 +1,32 @@
+// Copyright (C) 2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <LLMQore/BaseTool.hpp>
+
+namespace QodeAssist::Tools {
+
+class ProposeCompletionTool : public ::LLMQore::BaseTool
+{
+    Q_OBJECT
+
+public:
+    explicit ProposeCompletionTool(QObject *parent = nullptr);
+
+    static QString toolId();
+
+    QString id() const override;
+    QString displayName() const override;
+    QString description() const override;
+    QJsonObject parametersSchema() const override;
+    ::LLMQore::ToolSafety safety() const override;
+
+    QFuture<::LLMQore::ToolResult> executeAsync(const QJsonObject &input = QJsonObject()) override;
+
+signals:
+    void completionProposed(const QString &filePath, int line, int column, const QString &text);
+};
+
+} // namespace QodeAssist::Tools