refactor: Restructure project into sources/tests layout and dissolve PluginLLMCore

sources/logger/RequestPerformanceLogger.cpp

@@ -0,0 +1,40 @@
+// Copyright (C) 2025 Povilas Kanapickas <povilas@radix.lt>
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#include "RequestPerformanceLogger.hpp"
+#include "Logger.hpp"
+
+namespace QodeAssist {
+
+void RequestPerformanceLogger::startTimeMeasurement(const QString &requestId)
+{
+    m_requestStartTimes[requestId] = QDateTime::currentMSecsSinceEpoch();
+}
+
+void RequestPerformanceLogger::endTimeMeasurement(const QString &requestId)
+{
+    if (!m_requestStartTimes.contains(requestId)) {
+        return;
+    }
+
+    qint64 startTime = m_requestStartTimes[requestId];
+    qint64 endTime = QDateTime::currentMSecsSinceEpoch();
+    qint64 totalTime = endTime - startTime;
+    logPerformance(requestId, totalTime);
+    m_requestStartTimes.remove(requestId);
+}
+
+void RequestPerformanceLogger::logPerformance(const QString &requestId, qint64 elapsedMs)
+{
+    LOG_MESSAGE(
+        QString("Performance: %1 total completion time took %2 ms").arg(requestId).arg(elapsedMs));
+}
+
+void RequestPerformanceLogger::logPerformance(
+    const QString &requestId, const QString &operation, qint64 elapsedMs)
+{
+    LOG_MESSAGE(QString("Performance: %1 %2 took %3 ms").arg(requestId, operation).arg(elapsedMs));
+}
+
+} // namespace QodeAssist