refactor(web): extract YouTubePlayerCore class for better architecture

.changeset/orange-snakes-wonder.md

@@ -0,0 +1,7 @@
+---
+"react-native-youtube-bridge": patch
+---
+
+refactor(web): extract YouTubePlayerCore class for better architecture
+- Separate business logic from React lifecycle
+- Create framework-agnostic core with useYouTubePlayer hook

example/src/App.tsx

@@ -32,7 +32,6 @@ function App() {
     console.log('Player is ready!');
     Alert.alert('알림', 'YouTube 플레이어가 준비되었습니다!');
 
-    // 플레이어 준비 완료 후 정보 가져오기
     console.log('rates', playerInfo.availablePlaybackRates);
     console.log('vol', playerInfo.volume);
     console.log('muted', playerInfo.muted);

src/YoutubePlayer.tsx

@@ -221,10 +221,8 @@ const YoutubePlayer = forwardRef<PlayerControls, YoutubePlayerProps>(
 
     useEffect(() => {
       return () => {
-        // 모든 pending commands 정리
         pendingCommandsRef.current.clear();
 
-        // WebView 내부 cleanup 호출
         if (webViewRef.current && isReady) {
           sendCommand('cleanup');
         }