Statistics with a chart at the end of a game, 64 achievements kept locally and on the server

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/bosses.rs

@@ -110,6 +110,7 @@ impl Game {
             return;
         }
         self.ents[j].boss = 0;
+        self.count_local(crate::stats::BOSSES);
         let got = self.add_gold(BOSS_GOLD);
         self.rune_free += 1;
         let (x, y) = (self.ents[j].x, self.ents[j].y);