Refactor LVGL code into kernel module (#472)

* **New Features**
  * Added a standalone LVGL module and enabled LVGL support in the simulator for richer local UI testing.

* **Refactor**
  * HAL and LVGL split into distinct modules; startup and device attach/detach flows reorganized for clearer lifecycle management.
  * Public APIs tightened with clearer nullability/documentation.

* **Bug Fixes**
  * More consistent LVGL start/stop and device attach/detach behavior for improved stability.

TactilityKernel/Source/device.cpp

@@ -264,7 +264,7 @@ void for_each_device_of_type(const DeviceType* type, void* callbackContext, bool
     for (auto* device : ledger.devices) {
         auto* driver = device->internal.driver;
         if (driver != nullptr) {
-            if (driver->deviceType == type) {
+            if (driver->device_type == type) {
                 if (!on_device(device, callbackContext)) {
                     break;
                 }