github issue #1275: curses init vs pauper

Reported by ars3niy, the curses interface could behave strangely on
the first turn if the 'pauper' option/conduct was specified.

There isn't any definitive flag indicating whether or not the game
has started.  Since 'moves' has traditionally been initialized to 1
rather than to 0, there were several instances of
|  if (moves <= 1 && invent != NULL)
being used to determine the starting state on the assumption that
once hero has inventory, the game has begun.  Introduction of the
'pauper' option made the test for non-Null invent become unreliable.
For paupers, the program would behave as if the game hadn't started
yet until the player finally made a time-consuming move.

This changes compile-time initialization of 'moves' from 1 to 0,
then sets it to 1 when initial inventory would be bestowed (even
when 'pauper' inhibits that).  That's probably not the best place
for it, but testing for 'moves==0' now should produce an identical
effect as 'moves<=1 && invent!=NULL' used to accomplish.

It would have been much simpler just to give paupers 1 gold piece,
or perhaps one rock, in place of usual starting gear so that their
initial inventory wouldn't be empty, but the moves+invent way of
checking for start-of-play has always bothered me.

Should 'pauper' be preventing 'nethack -X' from giving its starting
wand of wishing?  Conducts and explore mode don't really overlap so
maybe it doesn't matter.

Fixes #1275

src/decl.c

@@ -1,4 +1,4 @@
-/* NetHack 3.7	decl.c	$NHDT-Date: 1720074480 2024/07/04 06:28:00 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.334 $ */
+/* NetHack 3.7	decl.c	$NHDT-Date: 1725138480 2024/08/31 21:08:00 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.337 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Michael Allison, 2009. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -963,7 +963,7 @@ static const struct instance_globals_saved_m init_svm = {
     /* dungeon.c */
     UNDEFINED_PTR,                       /* mapseenchn */
     /* decl.c */
-    1L,                                  /* moves; misnamed turn counter */
+    0L,                                  /* moves; misnamed turn counter */
     { UNDEFINED_VALUES }                 /* mvitals */
 };