## Summary
Adds a dashed 'Today' vertical reference line on the account balance
chart when a loan amortization projection is rendered. Makes it obvious
which months on the chart are historical (carry-forward of the last
recorded balance) and which are future projections.
## Context
Loan accounts extend their balance-evolution series with 12 months of
projected amortization values (see
`DashboardAnalyticsController::accountBalanceEvolution`). Without a
marker, past carry-forward months and future projected months looked
like a single continuous history.
## Changes
- `resources/js/components/accounts/account-balance-chart.tsx`
- Import `ReferenceLine` from recharts.
- Compute `todayMarker` (`yyyy-MM` monthly, `yyyy-MM-dd` daily).
- Render `<ReferenceLine>` inside the projected `ComposedChart` branch.
- Styling matches the budget spending chart (1px dashed, foreground
stroke, 'Today' label on top).
## Screenshots
_Visual change only — renders a dashed vertical line at the current date
on loan account charts with projection._
4b145e230b