basic plugin support

src/pluginmanager.h

@@ -0,0 +1,49 @@
+#pragma once
+#include "iplugin.h"
+#include <QVector>
+#include <QString>
+#include <QLibrary>
+#include <memory>
+
+/**
+ * Manages plugin loading and lifecycle
+ */
+class PluginManager
+{
+public:
+    PluginManager() = default;
+    ~PluginManager();
+    
+    // Load plugins from the "Plugins" folder
+    void LoadPlugins();
+    
+    // Get all loaded plugins
+    const QVector<IPlugin*>& plugins() const { return m_plugins; }
+    
+    // Get plugins of a specific type
+    QVector<IProviderPlugin*> providerPlugins() const;
+    
+    // Find plugin by name
+    IPlugin* FindPlugin(const QString& name) const;
+    
+    // Load a single plugin from path
+    bool LoadPluginFromPath(const QString& path);
+    
+    // Unload a specific plugin by name
+    bool UnloadPlugin(const QString& name);
+    
+    // Unload all plugins
+    void UnloadPlugins();
+    
+private:
+    struct PluginEntry
+    {
+        QLibrary* library;
+        IPlugin* plugin;
+    };
+    
+    QVector<PluginEntry> m_entries;
+    QVector<IPlugin*> m_plugins; // Non-owning pointers for quick access
+    
+    bool LoadPlugin(const QString& path);
+};