- 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>
- Add collapsible-open/close keyframes and CSS animation tokens to index.css
- Add dashboard.sections and dashboard.carryoverIncludes keys to en.json and de.json
- Add optional subtitle/subtitleClassName props to StatCard
- Extend SummaryStrip balance prop with carryoverSubtitle/carryoverIsNegative
- Compute and pass carryover subtitle from DashboardContent to SummaryStrip
- Replace hardcoded current month with useMonthParam (URL search params)
- Add MonthNavigator in PageShell action slot
- Replace old recharts pie + progress bars with ExpenseDonutChart, IncomeBarChart, SpendBarChart
- Add empty-month prompt with create/generate buttons
- Memoize all derived data with useMemo
- Move QuickAddPicker below chart grid per plan
