Link operation loot to the supply/demand ledger with faucet/drain caps and provenance-marked notes; repair buyListing to preflight locker credit before payment with a compensating refund on credit failure.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
