Thin fills announce themselves
Filters by category and by status — in, low, out — keep the floor readable at any size; a refill from the attention list is one press and writes its receive to the ledger. This strip below is the real interaction pattern.
- Stock bars scaled to 3× the reorder point — the marker never moves
- One-press refills that write a receive and clear the alert
- Threshold crossings ring the bell the moment the fill drops