Kernel improvements (#468)

* **New Features**
  * Plugin-style modules for platforms and devices with start/stop lifecycle and a runtime-consumable device tree array.

* **Refactor**
  * Consolidated initialization into a kernel/module startup flow.
  * Generated devicetree artifacts moved to the build Generated directory.

* **Changes**
  * Removed legacy no-op registration hooks and I2C lock/unlock wrappers.
  * Driver ownership and private state moved to explicit module/owner model.
  * Added ERROR_NOT_ALLOWED error code.

Devices/lilygo-tlora-pager/Source/drivers/TloraPager.cpp

@@ -6,6 +6,8 @@
 
 extern "C" {
 
+extern struct Module device_module;
+
 static int start(Device* device) {
     return 0;
 }
@@ -21,7 +23,8 @@ Driver tlora_pager_driver = {
     .stopDevice = stop,
     .api = nullptr,
     .deviceType = nullptr,
-    .internal = { 0 }
+    .owner = &device_module,
+    .driver_private = nullptr
 };
 
 }