Use expo-native-ui to let AI write Expo interfaces that look more like native apps

### Official Translation: This introduces Expo's official Agent Skill expo-native-ui (v1.1.1): it teaches AI to build Expo screens that closely match the system's visual style following conventions such as Apple HIG, semantic colors, native controls, and prioritizing Reanimated and Expo Go. The article verifies the installation methods of Cursor / Claude Code / Codex, the Color API and animation examples, and explains that navigation should be paired with expo-router, as well as the differences in division of labor with expo-ui.