Minor bug fixes and improvements.

1. Improved overall stability for a more reliable experience
2. Fixed multiple known issues and edge-case bugs
3. Optimized performance for faster and smoother operation

Added fullscreen quality selection with Auto and multiple resolution options
Improved live playback stability during switching, refresh, and scrolling
Added playback status prompts and retry support for a smoother experience
Optimized iPad layout and fullscreen interaction

Fixed known issues, improved playback stability, optimized channel loading speed, and enhanced user experience.