Upgraded 6 apps from SDK 52/54 to SDK 55 (matrix was already on 55).
All apps now consistently use:
- Expo SDK ~55.0.5
- React Native 0.83.2
- React 19.2.0
- expo-router ~55.0.5
- NativeWind ~4.2.3
Before: 3 different SDK versions (52, 54, 55)
After: 1 version (55) across all 7 mobile apps
Added docs/EXPO_SDK_UPGRADE.md with testing checklist.
Note: pnpm install + device testing required to validate the upgrades.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
