backport: Merge bitcoin#23157, 24041, 20591, 22677#6259

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vijaydasmp wants to merge 4 commits intodashpay:developfrom vijaydasmp:bp23_2024_09_04

+405-177

Commits on Sep 15, 2024

Merge bitcoin#23157 : txmempool -/-> validation 1/2: improve performance of check() and remove dependency on validation

MarcoFalke
authored and
vijaydasmp
committed
Merge bitcoin#24041 : util: Restore GetIntArg saturating behavior

MarcoFalke
authored and
vijaydasmp
committed
Merge bitcoin#20591 : wallet, bugfix: fix ComputeTimeSmart function during rescanning process.

meshcollider
authored and
vijaydasmp
committed
Merge bitcoin#22677 : cut the validation <-> txmempool circular dependency 2/2

MarcoFalke
authored and
vijaydasmp
committed