Posted P&L expense breakdown over completed months

Home "Expenses by category" card (F18). Signed net posted expense activity per category over a server-resolved completed-month window (never the current partial month), covering every P&L expense family (COGS, operating expense, depreciation/amortization, interest, income tax, other expense) with signed contra/refund effects. Exact minor-unit strings. A zero or negative signed total returns rows and total without percentages; a window the posted-books month census does not fully cover, mixed-currency, truncated, or entity-unattributable coverage returns available:false with a reason (never a partial total).