introduce a stable NTL_DDK driver ABI to replace direct HAL_API and kernel-header access in drivers, add code/kernel/io_ddk.c and code/public/ntlite/ddk/ headers, change DriverEntry to take (const NTL_DDK*, NTL_DRIVER_INIT*), update kmain to build the DDK once via IoInitializeDdk/IoGetDdk and hand it to both boot and runtime drivers, downgrade code/public/ntlite/ddi/io_driver.h to a legacy I/O model header pulling from ntlite/ddk instead of kernel internals, move code/third_party/lwip into code/drivers/net/lwip/third_party, fix up lwip_sources.txt and build.c include paths to match, split build.c's single CFLAGS macro into COMMON/KERNEL/USER/BOOT/DRIVER cflags.

code/drivers/storage/ata/ata.c

@@ -2,7 +2,7 @@
 
 #include "ata.h"
 
-const HAL_API* gAtaHal;
+const NTL_DDK* gAtaDdk;
 static DRIVER_OBJECT gAtaDriver;
 static ATA_CONTROLLER* gAtaControllers[ATA_MAX_CONTROLLERS];
 static uint32_t gAtaControllerCount;
@@ -693,12 +693,13 @@ KSTATUS AtaAddDevice(DRIVER_OBJECT* driver, DEVICE_OBJECT* physicalDeviceObject)
 }
 
 // Implements the driver Entry operation.
-KSTATUS DriverEntry(const HAL_API* hal) {
-    if (!hal)
+KSTATUS DriverEntry(const NTL_DDK* ddk, NTL_DRIVER_INIT* init) {
+    (void)init;
+    if (!ddk)
         return NTLSTATUS_INVALID_PARAMETER;
 
     DbgPrint("ATA: driver loading...\n");
-    gAtaHal = hal;
+    gAtaDdk = ddk;
     gAtaControllerCount = 0;
 
     memset(&gAtaDriver, 0, sizeof(gAtaDriver));