feat: Add settings page for providers (#353)

settings/ProviderListItem.hpp

@@ -0,0 +1,50 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <QFrame>
+
+class QLabel;
+class QMouseEvent;
+
+namespace QodeAssist::Providers {
+struct ProviderInstance;
+}
+
+namespace QodeAssist::Settings {
+
+class ProviderListItem : public QFrame
+{
+    Q_OBJECT
+public:
+    enum class Status : int { Unknown, Ok, Fail };
+
+    explicit ProviderListItem(
+        const Providers::ProviderInstance &inst, QWidget *parent = nullptr);
+
+    void setStatus(Status s);
+    void setSelected(bool s);
+    QString providerName() const { return m_name; }
+
+signals:
+    void clicked(const QString &name);
+
+protected:
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void changeEvent(QEvent *event) override;
+
+private:
+    static QString statusColor(Status s);
+    void applyTheme();
+
+    QString m_name;
+    Status m_status = Status::Unknown;
+    bool m_selected = false;
+    bool m_inApplyTheme = false;
+    QLabel *m_statusDot = nullptr;
+    QLabel *m_nameLabel = nullptr;
+    QLabel *m_urlLabel = nullptr;
+};
+
+} // namespace QodeAssist::Settings