# Stock ledger conventions (ADR-0007, Master Prompt §6.8)

Entities: `warehouses`, `warehouse_locations`, `stock_items`, `stock_lots` (when needed), `stock_movements`, `stock_reservations`, `inventory_counts`, `transfers`, `receipts`, `issues`, `returns`, `rma`.

Movement types: entrada compra, ajuste entrada/saída, transferência, reserva, liberação de reserva, saída venda, saída instalação, comodato, devolução, RMA, baixa patrimonial.

Balance is always `SUM(movements)` — never a stored, directly-editable number.