[hle] attempt support ULaunch

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/core/CMakeLists.txt

@@ -1089,6 +1089,8 @@ add_library(core STATIC
     hle/service/ssl/ssl.h
     hle/service/ssl/ssl_backend.h
     hle/service/ssl/ssl_types.h
+    hle/service/ulsf/ulsf.cpp
+    hle/service/ulsf/ulsf.h
     hle/service/usb/usb.cpp
     hle/service/usb/usb.h
     hle/service/vi/application_display_service.cpp

src/core/hle/service/ulsf/ulsf.cpp

@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <memory>
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/ulsf/ulsf.h"
+#include "core/hle/service/server_manager.h"
+
+namespace Service::ULSF {
+
+ULSF_U::ULSF_U(Core::System& system_) : ServiceFramework{system_, "ulsf:u"} {
+    static const FunctionInfo functions[] = {
+        {0, &ULSF_U::GetVersion, "GetVersion"},
+    };
+    RegisterHandlers(functions);
+}
+ULSF_U::~ULSF_U() = default;
+
+// Result ULSF_U::GetVersion(Out<ULauncherVersion> out_version) {
+//     LOG_WARNING(Service_SM, "(stubbed)");
+//     *out_version = {};
+//     R_SUCCEED();
+// }
+
+void ULSF_U::GetVersion(HLERequestContext& ctx) {
+    LOG_WARNING(Service_SM, "(stubbed)");
+    ULauncherVersion version{1, 6, 7};
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(version);
+}
+
+void LoopProcess(Core::System& system) {
+    auto server_manager = std::make_unique<ServerManager>(system);
+    server_manager->RegisterNamedService("ulsf:u", std::make_shared<ULSF_U>(system));
+    ServerManager::RunServer(std::move(server_manager));
+}
+
+}

src/core/hle/service/ulsf/ulsf.h

@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::ULSF {
+
+struct ULauncherVersion {
+    u8 major;
+    u8 minor;
+    u8 micro;
+};
+
+class ULSF_U final : public ServiceFramework<ULSF_U> {
+public:
+    explicit ULSF_U(Core::System& system_);
+    ~ULSF_U();
+    //Result GetVersion(Out<ULauncherVersion> out_version);
+    void GetVersion(HLERequestContext& ctx);
+};
+
+void LoopProcess(Core::System& system);
+
+}