Jkvideo Bilibili React Native

This is a reference implementation for anyone building a Bilibili client or working with DASH video in React Native. The skill covers the full WBI signature flow (pure TypeScript MD5, no crypto deps), MPD generation for ExoPlayer, real-time WebSocket danmaku, and QR login. It's based on a working app with Expo SDK 55 and react-native-video, so you get concrete patterns for things like cookie injection in axios interceptors and nav key caching with 12h TTL. Useful if you're dealing with authenticated Chinese video APIs or need a starting point for adaptive streaming with live comments. The code is production-tested, not a toy example.