Replace skeleton blocks with shimmer text placeholders across all pages:
- Asset page: show full UI with flickering numbers during load
- Trading page: show full UI with flickering market data during load
- Contribution page: show full UI with flickering stats during load
- shimmer_loading.dart: add ShimmerText, DataText, AmountText components
This approach shows the complete UI immediately, with only the dynamic
number values flickering while data loads - much better UX than showing
grey skeleton blocks.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Optimize splash page: reduce wait to 500ms, refresh token in background
- Cache SharedPreferences instance to avoid blocking API requests
- Add global 401 handler to auto-redirect to login page
- Create shimmer loading components (ShimmerLoading, ShimmerBox, skeletons)
- Replace CircularProgressIndicator with skeleton screens across all pages
- Add keepAlive + auto-invalidation (5min) to providers to reduce API calls
- Fix trading page: invalidate globalStateProvider after trade for data sync
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin