feat: Add settings page for providers (#353)

settings/NewProviderDialog.hpp

@@ -0,0 +1,34 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <QDialog>
+#include <QStringList>
+
+class QComboBox;
+class QLineEdit;
+
+namespace QodeAssist::Settings {
+
+class NewProviderDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit NewProviderDialog(const QStringList &types, QWidget *parent = nullptr);
+
+    QString providerType() const;
+    QString providerName() const;
+    QString url() const;
+    QString description() const;
+    QString apiKey() const;
+
+private:
+    QComboBox *m_typeCombo = nullptr;
+    QLineEdit *m_nameEdit = nullptr;
+    QLineEdit *m_urlEdit = nullptr;
+    QLineEdit *m_descriptionEdit = nullptr;
+    QLineEdit *m_apiKeyEdit = nullptr;
+};
+
+} // namespace QodeAssist::Settings