Implement Fase 5 lectura de correos y Fase 6 notificaciones: ReaderPage muestra correos reales vía EmailManager, añadido NotificationManager con QSystemTrayIcon y suscripción al Event Bus; actualizados EmailManager y DbChangeProcessor; creado estructura de notificaciones básica

src/utils/notificationmanager.cpp

@@ -0,0 +1,86 @@
+#include "notificationmanager.h"
+#include <QGuiApplication>
+#include <QDebug>
+
+NotificationManager::NotificationManager(QObject *parent)
+    : QObject(parent)
+{
+    setupTrayIcon();
+    setupConnections();
+}
+
+void NotificationManager::setupTrayIcon()
+{
+    m_trayIcon = new QSystemTrayIcon(this);
+    // Set an icon (you may want to load from resources)
+    m_trayIcon->setIcon(QIcon::fromTheme("mail-unread"));
+    m_trayIcon->setToolTip("Wino Mail");
+
+    m_trayMenu = new QMenu(this);
+    m_showHideAction = new QAction("Show/Hide", this);
+    m_quitAction = new QAction("Quit", this);
+    m_trayMenu->addAction(m_showHideAction);
+    m_trayMenu->addSeparator();
+    m_trayMenu->addAction(m_quitAction);
+    m_trayIcon->setContextMenu(m_trayMenu);
+
+    m_newMailSound = new QSoundEffect(this);
+    m_newMailSound->setSource(QUrl::fromLocalFile("/usr/share/sounds/freedesktop/stereo/message-new-instant.oga"));
+    m_newMailSound->setVolume(0.5);
+}
+
+void NotificationManager::setupConnections()
+{
+    // Connect tray icon signals
+    connect(m_trayIcon, &QSystemTrayIcon::activated, this, &NotificationManager::onTrayIconActivated);
+    connect(m_showHideAction, &QAction::triggered, this, &NotificationManager::onShowHideRequested);
+    connect(m_quitAction, &QAction::triggered, qApp, &QGuiApplication::quit);
+
+    // Subscribe to mail added events
+    SUBSCRIBE(WinoMail::Events::MailItemAddedEvent, [this](const WinoMail::Events::MailItemAddedEvent& event) {
+        onMailItemAdded(event);
+    });
+
+    // Show tray icon
+    m_trayIcon->show();
+}
+
+void NotificationManager::onMailItemAdded(const WinoMail::Events::MailItemAddedEvent& event)
+{
+    qDebug() << "NotificationManager: New mail arrived -" << event.item.subject();
+    // Show a system tray notification
+    m_trayIcon->showMessage(
+        "Wino Mail - Nuevo correo",
+        event.item.subject(),
+        QSystemTrayIcon::MessageIcon::Information,
+        5000 // 5 seconds
+    );
+    // Play sound
+    playNewMailSound();
+}
+
+void NotificationManager::onTrayIconActivated(QSystemTrayIcon::ActivationReason reason)
+{
+    if (reason == QSystemTrayIcon::Trigger || reason == QSystemTrayIcon::DoubleClick) {
+        onShowHideRequested();
+    }
+}
+
+void NotificationManager::onShowHideRequested()
+{
+    // TODO: Implement actual show/hide of main window
+    // For now, just log
+    qDebug() << "NotificationManager: Show/Hide requested";
+}
+
+void NotificationManager::onQuitRequested()
+{
+    // Already connected to quit
+}
+
+void NotificationManager::playNewMailSound()
+{
+    if (m_newMailSound->isLoaded()) {
+        m_newMailSound->play();
+    }
+}