speed up loading and saving to redis that the move request are getting a answer when switching workers, strip data that neats to get recomuted every turn

snakes/TemplateSnake.py

@@ -202,3 +202,12 @@ class TemplateSnake:
   def set_target_food(self, target_food:dict):
     self.target_food = target_food
     return True
+
+  def __getstate__(self):
+    state = self.__dict__.copy()
+    state['history'] = []              # strip history — grows per turn, not needed for moves
+    state.pop('game_board', None)      # re-set at top of every choose_move; circular ref
+    state.pop('calculations', None)    # re-initialised at top of every choose_move
+    state.pop('eat_the_snake_overwrite', None)  # re-initialised at top of every choose_move
+    state.pop('kill_the_snake', None)  # per-call transient
+    return state