Implement Milestone 2 profile schema, dialog, and connect lifecycle

src/profile_dialog.h

@@ -0,0 +1,35 @@
+#ifndef ORBITHUB_PROFILE_DIALOG_H
+#define ORBITHUB_PROFILE_DIALOG_H
+
+#include "profile_repository.h"
+
+#include <QDialog>
+
+class QComboBox;
+class QLineEdit;
+class QSpinBox;
+
+class ProfileDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ProfileDialog(QWidget* parent = nullptr);
+
+    void setDialogTitle(const QString& title);
+    void setProfile(const Profile& profile);
+    Profile profile() const;
+
+protected:
+    void accept() override;
+
+private:
+    QLineEdit* m_nameInput;
+    QLineEdit* m_hostInput;
+    QSpinBox* m_portInput;
+    QLineEdit* m_usernameInput;
+    QComboBox* m_protocolInput;
+    QComboBox* m_authModeInput;
+};
+
+#endif