add lwIP TCP/IP stack as a runtime driver, native socket syscalls, SysGetMemoryStatus replacing CatchAllDebugBucket, fix timeGetTime to return milliseconds, fix SysSleep to interpret argument as milliseconds, SysGetTick now returns microseconds, harden all syscalls against bad user pointers with CopyFromUser/CopyToUser/MmProbeUser throughout, add networking test apps, port-forward 8080 in runa.bat, split LWIP_DRIVER_CFLAGS, add settings.ini to deploy, remove ethernet.c stub

code/syscall/syscall_stubs.asm

@@ -197,6 +197,24 @@ SYSCALL_STUB2 GetTick,              SYS_GET_TICK
 SYSCALL_STUB2 DebugPrint,           SYS_DEBUG_PRINT
 SYSCALL_STUB2 QueryTrapFrame,       SYS_QUERY_TRAP_FRAME
 
-SYSCALL_STUB6 CatchAllDebugBucket,  SYS_CATCHALLDEBUGBUCKET
+; ---------------------------------------------------------------------------
+; Native sockets
+; ---------------------------------------------------------------------------
+SYSCALL_STUB2 Socket,               SYS_SOCKET
+SYSCALL_STUB2 Bind,                 SYS_BIND
+SYSCALL_STUB2 Listen,               SYS_LISTEN
+SYSCALL_STUB2 Accept,               SYS_ACCEPT
+SYSCALL_STUB2 Connect,              SYS_CONNECT
+SYSCALL_STUB6 Send,                 SYS_SEND
+SYSCALL_STUB6 Recv,                 SYS_RECV
+SYSCALL_STUB2 Shutdown,             SYS_SHUTDOWN
+SYSCALL_STUB2 SendTo,               SYS_SEND_TO
+SYSCALL_STUB2 RecvFrom,             SYS_RECV_FROM
+SYSCALL_STUB2 ResolveHost,          SYS_RESOLVE_HOST
+SYSCALL_STUB2 SetSocketOption,      SYS_SET_SOCKET_OPTION
+SYSCALL_STUB2 GetSocketOption,      SYS_GET_SOCKET_OPTION
+SYSCALL_STUB2 Poll,                 SYS_POLL
+
+SYSCALL_STUB2 GetMemoryStatus,       SYS_GET_MEMORY_STATUS
 
 END