Track and reuse profile offcuts

Three of the four states are driven entirely by the optimizer and the order state machine. You never set them by hand, and there is no button for them. Creation is discipline rather than enforcement: a production user can add a row here by hand, and nothing stops them — but a hand-made row is invisible to the optimizer's own bookkeeping, so it will never be reserved, reconciled or consumed.

Partial use splits a row rather than over-committing it: if a plan needs 3 of a ×40 row, the reservation carves out the three it needs and leaves the rest available, so the count on the rack keeps matching the count in the list.

A rest is booked into this list only when all three conditions hold: the order has Generate Offcut Pieces on, the bar was a fresh bar rather than a remnant itself, and the leftover reaches the reusable threshold. That threshold is the product's own Reusable Rest Threshold if it has one, otherwise the fleet default of 300 mm. Anything shorter is waste on the cutting plan and never appears here.

Filling the list and drawing on it are two different switches. The second one is Use Offcut Pieces on the order that is optimising: with it off, the optimizer never looks at this inventory at all, and the Available → Reserved → Consumed lifecycle below simply never happens — remnants keep accumulating and nothing ever spends them.

Both switches take their default, and produced offcuts take the storage location they are filed at, from three settings that are rendered on no screen at all. An administrator sets them; a user cannot.