Add Guessing Game

Implement a guessing game with user-selectable range via slider. Includes two modes: user guesses computer's number, and computer guesses user's number using random, linear, or binary search strategies.

src/pages/GuessingGamePage.tsx

@@ -0,0 +1,13 @@
+import GuessingGame from '@/components/GuessingGame';
+
+const GuessingGamePage = () => {
+  return (
+    <div className="min-h-screen bg-background">
+      <div className="container mx-auto px-4 py-8">
+        <GuessingGame showSocialShare={true} />
+      </div>
+    </div>
+  );
+};
+
+export default GuessingGamePage;