add removal of chat sessions, auto title + icon, proper stick-to-bottom as response is streamed

Plugins/ZShell/Llm/chatstore.hpp

@@ -2,8 +2,9 @@
 
 #include "session.hpp"
 
-#include <QJsonObject>
 #include <QObject>
+#include <QSqlDatabase>
+#include <QString>
 #include <QVariantList>
 
 namespace ZShell {
@@ -19,6 +20,7 @@ class ChatStore : public QObject {
 
 	public:
 	explicit ChatStore(QObject* parent = nullptr);
+	~ChatStore();
 
 	[[nodiscard]] int count() const;
 	[[nodiscard]] QVariantList values() const;
@@ -32,24 +34,25 @@ class ChatStore : public QObject {
 
 	[[nodiscard]] ChatSession* sessionById(const QString& id);
 	void persist(ChatSession* session);
+	void saveMeta(ChatSession* session);
+	void loadMessagesInto(ChatSession* session);
 
 	Q_SIGNALS:
 	void countChanged();
 	void valuesChanged();
 
 	private:
+	void openDb();
 	void load();
-	void migrateLegacy();
+	bool saveSession(ChatSession* session);
 	void sortAndNotify();
 	void removeSession(ChatSession* session);
-	bool isStreaming(ChatSession* session) const;
 	void notify(const QList<ChatSession*>& before);
 
 	QList<ChatSession*> m_sessions;
+	QString m_connectionName;
 
-	static QString dir();
-	static QString pathFor(const QString& id);
-	static bool writeFile(const QString& path, const QJsonObject& doc);
+	[[nodiscard]] QSqlDatabase db() const;
 
 	friend class Chat;
 };