e9b297c162
LineItemsTable's live preview did `Math.round(subtotal * vatRate) / 100` where subtotal is in major units and vatRate is a fraction (0.081) — rounding to whole units before the /100 divided the VAT by 100 (CHF 0.63 instead of 63.18). Add the missing *100 inside the round so it rounds to cents. Backend computeTotals + the PDF + the tax report were always correct; this preview-only bug just surfaced now that new invoices seed a non-zero default VAT code instead of 0%.