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/spells.rs

@@ -263,6 +263,7 @@ impl Game {
             }
         }
         self.mana -= cost;
+        self.count(crate::stats::SPELLS, 1.0);
     }
 
     // running spell effects on a unit (called every frame)