integrate AppManager and UpdateService into kernel with Lua API registration

src/main/cpp/kernel.cpp

@@ -3,6 +3,9 @@
 #include "render_target.h"
 #include "logger.h"
 #include "assets_manager.h"
+#include "apps/app_manager.h"
+#include "apps/update_service.h"
+#include "apps/app_api.h"
 #include "aidl/com/omixlab/mosis/IMosisListener.h"
 #include <android/hardware_buffer.h>
 #include <android/asset_manager.h>
@@ -18,6 +21,8 @@
 // Global state for Lua access
 static Rml::Context* g_context = nullptr;
 static Rml::ElementDocument* g_document = nullptr;
+static mosis::AppManager* g_app_manager = nullptr;
+static mosis::UpdateService* g_update_service = nullptr;
 
 using namespace aidl::com::omixlab::mosis;
 using namespace aidl::android::hardware;
@@ -141,12 +146,18 @@ static int LuaLoadScreen(lua_State* L)
 }
 
 // Register Lua functions for navigation
-static void RegisterLuaFunctions()
+static void RegisterLuaFunctions(const std::string& current_app_id, bool is_system_app)
 {
     lua_State* L = Rml::Lua::Interpreter::GetLuaState();
     lua_pushcfunction(L, LuaLoadScreen);
     lua_setglobal(L, "loadScreen");
     Logger::Log("Registered Lua loadScreen function");
+
+    // Register app management APIs
+    if (g_app_manager && g_update_service) {
+        mosis::RegisterAppAPIs(L, g_app_manager, g_update_service, current_app_id, is_system_app);
+        Logger::Log("Registered Lua app management APIs");
+    }
 }
 
 void Kernel::main_loop()
@@ -184,8 +195,22 @@ void Kernel::main_loop()
     Rml::Lua::Initialise();
     Logger::Log("RmlUi Lua bindings initialized");
 
+    // Initialize app management system
+    // TODO: Get data root from Android context (for now use a placeholder)
+    std::string data_root = "/data/data/com.omixlab.mosis/files";
+    m_app_manager = std::make_unique<mosis::AppManager>(data_root);
+    m_update_service = std::make_unique<mosis::UpdateService>(
+        m_app_manager.get(), "https://portal.mosis.dev/api/v1");
+    g_app_manager = m_app_manager.get();
+    g_update_service = m_update_service.get();
+    Logger::Log("App management system initialized");
+
+    // Start background update checks (every 24 hours)
+    m_update_service->Start(std::chrono::hours(24));
+
     // Register navigation functions with Lua
-    RegisterLuaFunctions();
+    // Home screen is a system app with full access
+    RegisterLuaFunctions("com.mosis.home", true);
 
     g_context = Rml::CreateContext("default", Rml::Vector2i(540, 960));
     if (!g_context)