Giellie can now update stock quantities from a pasted list. The operator
pastes SKUs and quantities into the chat; Giellie resolves each line
against stock_items, asks whether the numbers are the new quantity on
hand or an addition, shows the plan, and writes the change against the
signed-in operator's name in the stock ledger.
The write path is ledger-first and audited, a failed write is its own
status and is compensated so the ledger cannot drift from the quantity,
and a dry run writes nothing at all. Nothing blocks on a low quantity -
the till oversells on purpose and the stocktake is what corrects it.
The till now shows the quantity on each catalogue tile, drawn under the
price as it is, negatives included.
