invoice-9

/* This ZIP will contain the following pre-configured files: 1. index.html – Invoice form with editable GST, Discount, Advance, Balance Payable 2. style.css – Styling for the invoice form and invoice preview 3. script.js – JS handling calculations, approval workflow, PDF generation, WhatsApp share 4. admin.html – Admin panel to approve invoice, auto update PAID status 5. invoices.json – Placeholder JSON storage for saved invoices 6. README.txt – Instructions */