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

sources/context/IDocumentReader.hpp

@@ -0,0 +1,26 @@
+// Copyright (C) 2025 Povilas Kanapickas
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <QTextDocument>
+
+namespace QodeAssist::Context {
+
+struct DocumentInfo
+{
+    QTextDocument *document = nullptr; // not owned
+    QString mimeType;
+    QString filePath;
+};
+
+class IDocumentReader
+{
+public:
+    virtual ~IDocumentReader() = default;
+
+    virtual DocumentInfo readDocument(const QString &path) const = 0;
+};
+
+} // namespace QodeAssist::Context