Overhaul the manager dashboard "Total Approved Spend" stat card per the
reporter's request:
- Swap the DollarSign lucide icon for IndianRupee (rupee symbol).
- Render the amount in the Indian short scale (lakh/crore) via a new
`formatCompactINR` helper, e.g. ₹2 Cr, ₹49 L, ₹75 K, instead of the full
₹49,00,000.00.
`formatCompactINR` rounds to at most 2 decimals, trims trailing zeros, keeps
the ₹ prefix and sign. The DollarSign icon is retained for the Accounts
"Payment Queue Value" card; the precise `formatCurrency` is kept for tables.
Adds unit tests covering crore/lakh/thousand/sub-thousand, boundaries, zero,
string input, negatives and non-finite input.
Fixes#50
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
defd6e7a18