Scaffold Qt6 Widgets app for Milestone 0

src/session_window.h

@@ -0,0 +1,22 @@
+#ifndef ORBITHUB_SESSION_WINDOW_H
+#define ORBITHUB_SESSION_WINDOW_H
+
+#include <QMainWindow>
+#include <QString>
+
+class QTabWidget;
+
+class SessionWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit SessionWindow(const QString& profileName, QWidget* parent = nullptr);
+
+private:
+    QTabWidget* m_tabs;
+
+    void addPlaceholderTab(const QString& profileName);
+};
+
+#endif