gen: improve |code confirmation prompt parser
[%& %project "y/n: "]
%+ parse
;~ pose
- (cold %.y ;~(pose (just 'y') (just 'Y')))
- (cold %.n ;~(pose (just 'n') (just 'N')))
+ (cold %.y (mask "yY"))
+ (cold %.n (mask "nN"))
==
|= reset=?
?. reset
