feat: add support acp in common chat (#369)

sources/acp/AgentTester.hpp

@@ -0,0 +1,50 @@
+// 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 <QObject>
+#include <QString>
+#include <QStringList>
+
+#include "acp/AgentDefinition.hpp"
+
+namespace LLMQore::Acp {
+class AcpClient;
+}
+
+namespace LLMQore::Rpc {
+class StdioClientTransport;
+}
+
+namespace QodeAssist::Acp {
+
+class AgentTester : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit AgentTester(QObject *parent = nullptr);
+
+    void start(const AgentDefinition &agent, const QString &workingDirectory);
+    void cancel();
+
+    bool isRunning() const { return m_running; }
+
+signals:
+    void finished(bool ok, const QString &report);
+
+private:
+    void report(bool ok, const QString &text);
+    void releaseClient();
+    QString diagnostics() const;
+
+    LLMQore::Acp::AcpClient *m_client = nullptr;
+    LLMQore::Rpc::StdioClientTransport *m_transport = nullptr;
+    QStringList m_stderr;
+    QString m_runner;
+    bool m_running = false;
+};
+
+} // namespace QodeAssist::Acp