finanza
Top-level entry point for the finanza package.
The package is organised by domain:
finanza/decimal— fixed-point decimal type and arithmetic with explicit rounding.finanza/currency— opaqueCurrencyandMoneytypes, allocation, and formatting.finanza/interest— time-value-of-money helpers (simple/compound interest, FV/PV/PMT, EAR).finanza/card— payment-card primitives: Luhn check, brand detection, masking, and expiry parsing.