terminate scan-progress in end-scan
walts (~(put by walts) xpub w(scanned %.y))
==
%- (slog ~[leaf+"Scanned xpub {<xpub>}"])
+ =^ cards state
(set-curr-xpub:hc xpub)
+ [[(give-update:hc [%scan-progress ~ ~]) cards] state]
::
:: +bump-batch
:: if the batch is done but the wallet isn't done scanning,
