Switch from sessionStorage to localStorage so the auth token survives
across tabs and browser restarts, matching standard platform behavior.
Also guard the signup redirect in App.tsx behind profileLoaded to avoid
a false redirect when the instance profile fetch fails.
Optimizes React Query migration with performance and consistency improvements:
Performance:
- Memoize AuthContext and InstanceContext provider values to prevent unnecessary re-renders
- Convert InstanceContext getter functions to useMemo hooks
- Fix refetchSettings to avoid state dependency that caused frequent recreations
Type Safety:
- Replace 'any' types in useAttachmentQueries with proper protobuf types
- Add Attachment and ListAttachmentsRequest type imports
Query Key Consistency:
- Replace hardcoded ["users", "stats"] with userKeys.stats() factory function
- Ensures consistent cache key management across mutations
Developer Experience:
- Rename unused useCurrentUser to useCurrentUserQuery to avoid confusion
- Add documentation explaining AuthContext-based vs React Query current user hooks
- Update internal references in useNotifications and useTagCounts
All changes verified with TypeScript compilation and build tests.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
