## Packages
react-hook-form | Form state management
@hookform/resolvers | Zod resolver for react-hook-form
date-fns | Date formatting

## Notes
The application features a strict dark-mode-first "Security/Industrial" aesthetic.
Invoice printing uses CSS `@media print` rules to isolate and style the invoice section against a white background for physical printing.
Database export uses a direct fetch and browser Blob download mechanism.
