Enhance player mechanics and visuals with audio feedback and dark trigram theme

index.html

@@ -10,17 +10,17 @@
       content="Master the dark arts of vital point striking through eight distinct trigram fighting styles in this precision combat experience."
     />
 
-    <!-- Korean font preload for performance -->
+    <!-- Enhanced font preload for Dark Trigram theme -->
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
     <link
-      href="https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;700&display=swap"
+      href="https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;700&family=Orbitron:wght@400;700;900&display=swap"
       rel="stylesheet"
     />
 
     <!-- Game optimizations -->
     <meta name="format-detection" content="telephone=no" />
-    <meta name="theme-color" content="#000000" />
+    <meta name="theme-color" content="#00ffd0" />
 
     <!-- Prevent zoom on mobile for game controls -->
     <meta

src/App.test.tsx

@@ -55,6 +55,7 @@ describe("Black Trigram Game Application", () => {
         Container: expect.any(Function),
         Graphics: expect.any(Function),
         Text: expect.any(Function),
+        Sprite: expect.any(Function),
       });
     });
   });