- Add CATEGORY_TYPES_ALL constant and isOverBudget direction-aware helper
- Derive groupedSections via useMemo (filters empty groups, computes totals)
- Initialize openSections state with smart defaults (over-budget expanded)
- State resets on month navigation via key={budgetId} on DashboardContent
- Insert CollapsibleSections between chart grid and QuickAdd
- Add skeleton placeholders for collapsible sections area in DashboardSkeleton
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>