deal damage now returns the damage amount dealt

change repercuted in server.py attack tool

utils/game.py

@@ -174,6 +174,7 @@ class Game(Serializable):
         self.turn_idx += 1
         if turn_finished:
             self.update_turn_order()
+        return int(dmg_amount)
 
     def modifying_stat(self, src:str, value:int, stat:int, description:str):
         if not self.is_turn_coherent(src):