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/public/ntlite/ddk/display.h

@@ -0,0 +1,62 @@
+// Public nt-lite DDK display-miniport declarations.
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <ntlite/status.h>
+#include <ntlite/ddi/display.h>
+
+typedef struct KE_CONSOLE_INFO {
+    uint32_t Columns;
+    uint32_t Rows;
+    uint32_t CursorX;
+    uint32_t CursorY;
+    uint16_t Attribute;
+} KE_CONSOLE_INFO;
+
+typedef struct KE_DISPLAY_INFO {
+    char PrimaryName[32];
+    DISPLAY_MODE Mode;
+    uint32_t Caps;
+    uint32_t DeviceCount;
+    DISPLAY_STATS ManagerStats;
+    DISPLAY_STATS DeviceStats;
+} KE_DISPLAY_INFO;
+
+// Registers a display miniport device with the kernel display manager.
+DISPLAY_API KSTATUS KeDisplayRegisterDevice(DISPLAY_DEVICE* device);
+
+// Sets the primary display device.
+DISPLAY_API KSTATUS KeDisplaySetPrimary(DISPLAY_DEVICE* device);
+
+// Suspends or resumes fallback console drawing.
+DISPLAY_API void KeDisplaySuspendConsole(bool suspend);
+
+// Queries the current display mode.
+DISPLAY_API KSTATUS KeDisplayGetMode(DISPLAY_MODE* outMode);
+
+// Queries the current display size.
+DISPLAY_API KSTATUS KeDisplayGetSize(int* outWidth, int* outHeight);
+
+typedef KSTATUS (*KE_DISPLAY_ROW_SOURCE)(void* context, int rowIndex, uint32_t* scratch, size_t pixelCount);
+
+DISPLAY_API KSTATUS KeDisplayBlit(int x, int y, int w, int h, const uint32_t* pixels);
+DISPLAY_API KSTATUS KeDisplayBlitRows(int x, int y, int w, int h, KE_DISPLAY_ROW_SOURCE source, void* context, uint32_t* scratch);
+DISPLAY_API KSTATUS KeDisplayFillRect(int x, int y, int w, int h, uint32_t color);
+DISPLAY_API KSTATUS KeDisplayClear(uint32_t color);
+DISPLAY_API KSTATUS KeDisplayCopyRect(int dstX, int dstY, int srcX, int srcY, int w, int h);
+DISPLAY_API KSTATUS KeDisplayScroll(int lines);
+DISPLAY_API KSTATUS KeDisplayPutChar(char c, int x, int y, uint32_t fg, uint32_t bg);
+DISPLAY_API KSTATUS KeDisplayPrintChar(char c, uint32_t fg, uint32_t bg);
+DISPLAY_API KSTATUS KeDisplayGetConsoleInfo(KE_CONSOLE_INFO* outInfo);
+DISPLAY_API KSTATUS KeDisplaySetConsoleCursor(int col, int row);
+DISPLAY_API KSTATUS KeDisplayFillConsoleChars(char c, int col, int row, size_t length, size_t* writtenOut);
+DISPLAY_API KSTATUS KeDisplayFillConsoleAttrs(uint16_t attr, int col, int row, size_t length, size_t* writtenOut);
+DISPLAY_API KSTATUS KeDisplayPresent(const DISPLAY_RECT* rects, size_t rectCount);
+DISPLAY_API KSTATUS KeDisplaySync(void);
+DISPLAY_API KSTATUS KeDisplayQueryInfo(KE_DISPLAY_INFO* outInfo);
+DISPLAY_API KSTATUS KeDisplaySetCursorImage(int width, int height, int hotX, int hotY, const uint32_t* argbPixels);
+DISPLAY_API KSTATUS KeDisplaySetCursorPosition(int x, int y);
+DISPLAY_API KSTATUS KeDisplayShowCursor(bool show);