feat: Add settings page for providers (#353)

sources/providersConfig/ProviderInstance.hpp

@@ -0,0 +1,57 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <chrono>
+
+#include <QHash>
+#include <QJsonObject>
+#include <QString>
+#include <QStringList>
+
+namespace QodeAssist::Providers {
+
+struct LaunchConfig
+{
+    QString command;
+    QStringList args;
+    QString cwd;
+    QHash<QString, QString> env;
+
+    QString readyUrl;
+    std::chrono::seconds readyTimeout{30};
+
+    bool autoStart = false;
+
+    bool detach = false;
+
+    [[nodiscard]] bool isEmpty() const noexcept { return command.isEmpty(); }
+};
+
+struct ProviderInstance
+{
+    QString name;
+    QString clientApi;
+    QString description;
+    QString url;
+    QString apiKeyRef;
+    QJsonObject extras;
+    LaunchConfig launch;
+    QString extendsName;
+    bool abstract = false;
+
+    QString sourcePath;
+    bool overridesBundled = false;
+    [[nodiscard]] bool isUserSource() const
+    {
+        return !sourcePath.startsWith(QLatin1StringView{":/"});
+    }
+
+    [[nodiscard]] static QString validate(
+        const ProviderInstance &inst, const QStringList &knownClientApis);
+
+    [[nodiscard]] static QString warnings(const ProviderInstance &inst);
+};
+
+} // namespace QodeAssist::Providers