- leech cycle failures no longer feed the session consecutive-fail tally
(five bad joins disabled the route for the whole session and ended the
game); _baal_xp_rearm keeps its own local breaker and resets the
game-level counter so the controller restarts D2R and the leech retries
- on_start_from_town: a leech that re-enters its own game on a corpse
(died in the public game, or save-and-exit raced the death screen)
gets pre_buff + /nopickup here - without it the char stays dead and the
next cycle's save-and-exit has no living game to exit from