Update v9.4.1: Enhanced Playback & Device Management

- Incremented version to 9.4.1 (versionCode: 94100)
- Added keep screen on functionality during video playback
- Implemented device deletion in dashboard with confirmation
- Enhanced device management with delete capability
- Improved user experience during media playback
- Better device lifecycle management in dashboard
- Added confirmation dialog for device deletion

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/src/main/java/com/streamplayer/PlayerActivity.java

@@ -4,6 +4,7 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.os.StrictMode;
 import android.view.View;
+import android.view.WindowManager;
 import android.widget.Button;
 import android.widget.ProgressBar;
 import android.widget.TextView;
@@ -58,6 +59,7 @@ public class PlayerActivity extends AppCompatActivity {
         );
 
         setContentView(R.layout.activity_player);
+        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 
         Intent intent = getIntent();
         if (intent == null) {
@@ -254,6 +256,7 @@ public class PlayerActivity extends AppCompatActivity {
     protected void onDestroy() {
         super.onDestroy();
         releasePlayer();
+        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
     }
 
     private void toggleOverlay() {