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/fs/fat32/fat32.c

@@ -3429,12 +3429,12 @@ static void Fat32DiskChange(uint8_t driveIndex,
 }
 
 // Implements the driver Entry operation.
-KSTATUS DriverEntry(const HAL_API *hal) {
+KSTATUS DriverEntry(const NTL_DDK* ddk, NTL_DRIVER_INIT* init) {
     DbgPrint("FAT32: Init\n");
-    if (!hal) return NTLSTATUS_INVALID_PARAMETER;
+    if (!ddk) return NTLSTATUS_INVALID_PARAMETER;
 
     FatCacheInvalidate();
-    (void)hal;
+    (void)init;
     gMountedCount = 0;
     memset(gDiskScanned, 0, sizeof(gDiskScanned));
 

code/drivers/fs/fat32/fat32.h

@@ -7,17 +7,17 @@
 #include <stdbool.h>
 #include <string.h>
 #include <ntlite/ddi/io_driver.h>
-#include <ntlite/ddi/hal_api.h>
-#include <kernel/io_file.h>
-#include <kernel/mm_virt.h>
-#include <kernel/ke_debug.h>
-#include <kernel/ke_irp.h>
-#include <kernel/ke_semaphore.h>
-#include <kernel/ke_thread.h>
-#include <kernel/ke_sched.h>
-#include <kernel/ke_time.h>
-#include <kernel/ke_mutex.h>
-#include <kernel/ke_irql.h>
+#include <ntlite/ddk/ddk.h>
+#include <ntlite/ddk/file.h>
+#include <ntlite/ddk/memory.h>
+#include <ntlite/ddk/debug.h>
+#include <ntlite/ddk/irp.h>
+#include <ntlite/ddk/semaphore.h>
+#include <ntlite/ddk/thread.h>
+#include <ntlite/ddk/scheduler.h>
+#include <ntlite/ddk/time.h>
+#include <ntlite/ddk/mutex.h>
+#include <ntlite/ddk/irql.h>
 
 typedef struct FAT32_VOL_S FAT32_VOL;