- 重新设计字幕加载策略：有内置字幕时不加载外部字幕，无内置字幕时自动发现同名字幕文件
- 字幕默认禁用，不再自动选中任何轨道
- 移除字幕设置中的「记住选择」开关
- 修复自动播放下一个视频时字幕不加载的问题
English Version
- Redesign subtitle loading strategy: skip external subtitles when embedded tracks exist, auto-discover same-name subtitle files otherwise
- Disable subtitles by default instead of auto-selecting a track
- Remove "Remember selections" toggle from subtitle settings
- Fix subtitles not loading when auto-playing to the next video