feat: Add settings page for providers (#353)

sources/providersConfig/ProviderInstanceLoader.hpp

@@ -0,0 +1,32 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <optional>
+#include <vector>
+
+#include <QString>
+#include <QStringList>
+
+#include "ProviderInstance.hpp"
+
+namespace QodeAssist::Providers {
+
+class ProviderInstanceLoader
+{
+public:
+    struct LoadResult
+    {
+        std::vector<ProviderInstance> instances;
+        QStringList errors;
+        QStringList warnings;
+    };
+
+    static LoadResult load(const QString &qrcPrefix, const QString &userDir);
+
+    static std::optional<ProviderInstance> parseFile(
+        const QString &path, QString *error);
+};
+
+} // namespace QodeAssist::Providers