new chatlistview component, file attachments, performance & primitive test

Plugins/ZShell/Llm/session.hpp

@@ -6,6 +6,8 @@
 #include <QDateTime>
 #include <QObject>
 #include <QString>
+#include <QStringList>
+#include <QVariantList>
 #include <QtQml>
 
 namespace ZShell::llm {
@@ -27,6 +29,10 @@ class ChatSession : public QObject {
 	Q_PROPERTY(int messageCount READ messageCount NOTIFY messageCountChanged)
 	Q_PROPERTY(
 		ZShell::llm::ChatMessageModel* messagesModel READ messagesModel CONSTANT)
+	Q_PROPERTY(QString workspace READ workspacePath CONSTANT)
+	Q_PROPERTY(
+		QString attachmentError READ attachmentError NOTIFY
+			attachmentErrorChanged)
 
 	public:
 	explicit ChatSession(const QString& id, QObject* parent = nullptr);
@@ -55,6 +61,13 @@ class ChatSession : public QObject {
 	[[nodiscard]] int lastTokenCount() const { return m_lastTokenCount; }
 	void setLastTokenCount(int value);
 
+	[[nodiscard]] QString workspacePath() const { return m_workspace; }
+	[[nodiscard]] QString attachmentError() const { return m_attachmentError; }
+	void setAttachmentError(const QString& value);
+
+	static QString sandboxDirFor(const QString& sessionId);
+	void ensureWorkspace();
+
 	void setTitle(const QString& value);
 	void setIcon(const QString& value);
 	void setUpdatedAt(qint64 value);
@@ -71,7 +84,12 @@ class ChatSession : public QObject {
 	void removeMessage(ChatMessage* message);
 	void clearMessages();
 
+	Q_INVOKABLE QVariantList addAttachments(const QStringList& paths);
+	Q_INVOKABLE bool clipboardHasAttachment();
+	Q_INVOKABLE QVariantList pasteAttachments();
 	Q_INVOKABLE void sendMessage(const QString& text);
+	Q_INVOKABLE void sendMessage(
+		const QString& text, const QVariantList& attachments);
 	Q_INVOKABLE void retry(ZShell::llm::ChatMessage* target);
 	Q_INVOKABLE void continueFrom(ZShell::llm::ChatMessage* message);
 	Q_INVOKABLE void clear();
@@ -83,6 +101,7 @@ class ChatSession : public QObject {
 	void pinnedChanged();
 	void messageCountChanged();
 	void loaded();
+	void attachmentErrorChanged();
 
 	private:
 	void onModelRowsChanged();
@@ -103,6 +122,8 @@ class ChatSession : public QObject {
 	bool m_loaded = false;
 	bool m_clearPending = false;
 	int m_lastTokenCount = 0;
+	QString m_workspace;
+	QString m_attachmentError;
 };
 
 } // namespace ZShell::llm