refactor: Move to agent architecture

ChatView/ChatAgentController.hpp

@@ -0,0 +1,47 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <QObject>
+#include <QPointer>
+#include <QString>
+#include <QStringList>
+
+namespace QodeAssist {
+class AgentFactory;
+}
+
+namespace QodeAssist::Chat {
+
+class ChatAgentController : public QObject
+{
+    Q_OBJECT
+    Q_DISABLE_COPY_MOVE(ChatAgentController)
+
+public:
+    explicit ChatAgentController(QObject *parent = nullptr);
+
+    void setAgentFactory(AgentFactory *factory);
+
+    [[nodiscard]] QStringList availableAgents() const;
+    [[nodiscard]] QString currentAgent() const;
+    void setCurrentAgent(const QString &name);
+
+    [[nodiscard]] bool currentSupportsTools() const;
+
+signals:
+    void availableAgentsChanged();
+    void currentAgentChanged();
+
+private:
+    void reload();
+    void ensureValidCurrent();
+    void applyCurrentAgent(const QString &name);
+
+    QPointer<AgentFactory> m_agentFactory;
+    QStringList m_availableAgents;
+    QString m_currentAgent;
+};
+
+} // namespace QodeAssist::Chat