fix: restore lost changes

Plugins/ZShell/Llm/chat.cpp

@@ -1,12 +1,13 @@
 #include "chat.hpp"
 
-#include "config.hpp"
 #include "filetool.hpp"
-#include "llm.hpp"
 #include "llmclient.hpp"
 #include "shelltool.hpp"
 #include "webfetchtool.hpp"
 
+#include "config/rootnodes.hpp"
+#include "config/llm.hpp"
+
 #include <QDebug>
 
 namespace ZShell::llm {
@@ -15,14 +16,12 @@ Chat::Chat(QObject* parent)
 	: QObject(parent)
 	, m_store(new ChatStore(this))
 	, m_client(new LlmClient(this)) {
-	if (!config::Config::instance()) new config::Config();
-
 	m_store->setLlmClient(m_client);
 	m_client->tools()->registerTool(new WebFetchTool(m_client->tools()));
 	m_client->tools()->registerTool(new FileReadTool(m_client->tools()));
 	m_client->tools()->registerTool(new ShellTool(m_client, m_client->tools()));
 
-	const auto* llm = config::Config::instance()->llm();
+	const auto* llm = config::ConfigSingleton::instance()->llm();
 	m_client->setEndpoint(llm->endpoint());
 	m_client->setModel(llm->model());
 	m_client->setTemperature(llm->temperature());
@@ -144,7 +143,7 @@ bool Chat::toolsEnabled() const {
 
 void Chat::setToolsEnabled(bool value) {
 	m_client->setToolsEnabled(value);
-	if (auto* config = config::Config::instance())
+	if (auto* config = config::ConfigSingleton::instance())
 		config->llm()->set_tools(value);
 }
 
@@ -154,7 +153,7 @@ bool Chat::sandboxEnabled() const {
 
 void Chat::setSandboxEnabled(bool value) {
 	m_client->setSandboxEnabled(value);
-	if (auto* config = config::Config::instance())
+	if (auto* config = config::ConfigSingleton::instance())
 		config->llm()->set_sandbox(value);
 }
 
@@ -195,7 +194,8 @@ void Chat::refreshFromServer() {
 void Chat::selectModel(const QString& id) {
 	if (id.isEmpty()) return;
 	m_client->setModel(id);
-	if (auto* config = config::Config::instance()) config->llm()->set_model(id);
+	if (auto* config = config::ConfigSingleton::instance())
+		config->llm()->set_model(id);
 }
 
 } // namespace ZShell::llm