implement user mode catchable exceptions, refactor system status codes to use NTLSTATUS_ prefix, update build scripts to use shared literal macros for linker arguments, update named queue lifetime cleanup to include KeNamedQueueUnpublishHandle.

code/drivers/input/ps2/ps2.c

@@ -305,5 +305,5 @@ KSTATUS DriverEntry(const HAL_API* hal) {
     Ps2ControllerEnableInterrupts();
 
     DbgPrint("ps2: initialized keyboard=%u mouse=%u\n", keyboardId, mouseId);
-    return STATUS_SUCCESS;
+    return NTLSTATUS_SUCCESS;
 }