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

sources/llmcore/ContextData.hpp

@@ -0,0 +1,68 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <QJsonObject>
+#include <QString>
+#include <QVector>
+
+namespace QodeAssist::LLMCore {
+
+struct ImageAttachment
+{
+    QString data;        // Base64 encoded data or URL
+    QString mediaType;   // e.g., "image/png", "image/jpeg", "image/webp", "image/gif"
+    bool isUrl = false;  // true if data is URL, false if base64
+
+    bool operator==(const ImageAttachment &) const = default;
+};
+
+struct ToolCall
+{
+    QString id;
+    QString name;
+    QJsonObject arguments;
+
+    bool operator==(const ToolCall &) const = default;
+};
+
+struct Message
+{
+    QString role;
+    QString content;
+    QString signature;
+    bool isThinking = false;
+    bool isRedacted = false;
+    std::optional<QVector<ImageAttachment>> images;
+
+    QVector<ToolCall> toolCalls;
+    QString toolCallId;
+    QString toolName;
+
+    // clang-format off
+    bool operator==(const Message&) const = default;
+    // clang-format on
+};
+
+struct FileMetadata
+{
+    QString filePath;
+    QString content;
+    bool operator==(const FileMetadata &) const = default;
+};
+
+struct ContextData
+{
+    std::optional<QString> systemPrompt;
+    std::optional<QString> prefix;
+    std::optional<QString> suffix;
+    std::optional<QString> fileContext;
+    std::optional<QVector<Message>> history;
+    std::optional<QList<FileMetadata>> filesMetadata;
+
+    bool operator==(const ContextData &) const = default;
+};
+
+} // namespace QodeAssist::LLMCore

sources/llmcore/RequestType.hpp

@@ -0,0 +1,13 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#include <QString>
+
+#pragma once
+
+namespace QodeAssist::LLMCore {
+
+enum RequestType { CodeCompletion, Chat, Embedding, QuickRefactoring };
+
+}